Killing the Xiticix?

[Mech-Viper Prime]

CS, quickly with mass firepower, nothing says to hell with you and your entire ugly race like carpet bombing, bunker buster, MOAB and artillery

[Killer Cyborg]

CS, quickly with mass firepower, nothing says to hell with you and your entire ugly race like carpet bombing, bunker buster, MOAB and artillery

Yup.
Mop up with Skelebots and Dog-boys.

[Nekira Sudacne]

I'd counter them with legions of skelebots.

I'd also make several copies of the Leviathian bomber, for getting their deep trenches. which can fly out of their range, and fater.

no need to put human life at risk. just destroy the whole area.

[pblackcrow]

You're Lazlo or CS(you're pick), how would you go about killing off all the Xiticix?

Get several bombs to take with you, and cluster bombs for distraction, cast invisability superiour and fly, go down to see the queens, place a nuke right at them, teleport out with a shifter...press button. Repeat.

[LunarYoma]

You're Lazlo or CS(you're pick), how would you go about killing off all the Xiticix?

Id use neutron bombs

[Nekira Sudacne]

You're Lazlo or CS(you're pick), how would you go about killing off all the Xiticix?

Id use neutron bombs

I'd send Jimmy Neutron after them.

I thought the CS had a thing aginst using Supernatural Intelligences?

[Nekira Sudacne]

You're Lazlo or CS(you're pick), how would you go about killing off all the Xiticix?

Id use neutron bombs

I'd send Jimmy Neutron after them.

I thought the CS had a thing aginst using Supernatural Intelligences?

Jimmy Neutron the cartoon character, my nephew watches it all the time. He's supernatural?

he's a D-Bee and way to smart. that's enough for them

[Nekira Sudacne]

he's a D-Bee and way to smart. that's enough for them

I thought he was from earth, I need to watch cartoons more carefully.

earth in another dimension.

hence, a Dimensional Being (D-Bee)

[cornholioprime]

The way Rifts Canon is written, you'd have to go off Planet (actually, off Dimension) and see if Naruni has Nukes for sale; I could have sworn that they DON'T, though.

Invisibility: Superior, Levitate, Locate Spells (you'd need to have a picture of the Queen, though); and Teleport: Superior. Probably at least TWO Mages so that as soon as Johnny Boy sets the Bomb down, and primes it (therefore becoming Visible), the OTHER Mage has that Teleport handy RIGHT away......

Unless I'm mistaken, the Structures are nearly IMPERVIOUS to Air assault, being both several hundreds of feet underground AND a Multi-MegaDamage Structure; bombing from above would ONLY serve to collapse the tops of the Hive and leave the lower levels intact.

Xiticix, like their Sludge, are immune to Radiation, so Surface Nukes are out of the picture as well.

BUT, if you detonate that Bomb where the Queen and her Eggs are, as long as you make sure that the OTHER Queens are in proximity of Ground Zero, this SHOULD be the LEAST Casualty-causing scenario of them all.

BTW, Skelebots, even as Shock Troops, would probably be next to useless.............

[Killer Cyborg]

BTW, Skelebots, even as Shock Troops, would probably be next to useless.............

I don't see how... this would be their exact kind of fight.
It's not like the bugs have funky magic powers or use that much in the way of strategy.
Besides, I'd replace their normal weapons with laser rifles that are capable of firing full-auto, still hooked into their power supply.

[cornholioprime]

BTW, Skelebots, even as Shock Troops, would probably be next to useless.............

I don't see how... this would be their exact kind of fight.
It's not like the bugs have funky magic powers or use that much in the way of strategy.
Besides, I'd replace their normal weapons with laser rifles that are capable of firing full-auto, still hooked into their power supply.

A]]Overhead Strafing by the Bugs.

B]] I expect well-trained Humans to have a hard time in the Tunnels, more so Skelebots.

C]] Item B]] is "true" because Skelebots are written to be SO stupid in Canon, despite their awesome Physical Stats and apparent capabilities......

[Killer Cyborg]

BTW, Skelebots, even as Shock Troops, would probably be next to useless.............

I don't see how... this would be their exact kind of fight.
It's not like the bugs have funky magic powers or use that much in the way of strategy.
Besides, I'd replace their normal weapons with laser rifles that are capable of firing full-auto, still hooked into their power supply.

A]]Overhead Strafing by the Bugs.

B]] I expect well-trained Humans to have a hard time in the Tunnels, more so Skelebots.

C]] Item B]] is "true" because Skelebots are written to be SO stupid in Canon, despite their awesome Physical Stats and apparent capabilities......

A) I must have missed the part that says skelebots can only fire at ground-level targets...
And did you miss the 2 mile radar that the skelebots have...?
B) They have a full range of optics and need no lights. The don't need to do anything other than move through the tunnels and shoot any bugs they see. It's not rocket science.
Besides, they have the Climb skill at 96% and climb 4x faster than the average human, and Land Nav at 86%.
C) only in the SoT series, where the Xiticix are written to be even dumber.
Going off of the actual description of the bots that says (SB1, p. 31):
"Each is programmed for standard strategic and tactical field maneuvers that are executed with expert efficiency (standard squad maneuvers, assault, and defensive action)."
"The machines are primarily designed for assault, i.e., seek and destroy operations."
"Skelebots sent into Minnesota may be programmed to only exterminate Xiticix life forms.."

p. 33
"The skelebots, while intelligent enough to take protective cover, are not designed for stealth (no prowl or disguise) or espionage. Instead, it is a pretty straightforward infantry unit, operating like its equivilant human counterpart."
(with no mention of the skelebots being less than human troops in any areas other than stealth and disguise... and, of course, they have the Intelligence skill at 76%)

[Mack]

I'd drive the bugs from Earth with the Ulitmate Weapon!!!!

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Faerie Food.

[Thinyser]

Do some research on what type of chemicals can hurt them... ya capture a few and do experiments on them. Once you have found the nastiest chemical you can, synthisize truckloads of the stuff, load up the skelebots with sprayers full of the stuff (with the full auto laser rifles connected to their power suply as back up) and send them into the hives...spritz and spray with the Uber RAID and when that runs out push farther in using their laser rifles as the next wave comes in with a fresh load of chemicals...
rinse & repeat

[The Artist Formerly]

Surface pericing themonuclear weapon, and equip the mop up units (skelebots) with chemical agents that affect the bugs antena abilities. Take out their antena bonuses and they aren't much of a threat. Their strenght is a weakness.

[cornholioprime]

Do some research on what type of chemicals can hurt them... ya capture a few and do experiments on them. Once you have found the nastiest chemical you can, synthisize truckloads of the stuff, load up the skelebots with sprayers full of the stuff (with the full auto laser rifles connected to their power suply as back up) and send them into the hives...spritz and spray with the Uber RAID and when that runs out push farther in using their laser rifles as the next wave comes in with a fresh load of chemicals...
rinse & repeat

Immune to Poison and Radiation. Even their food is completely immune to Poison, and higlhy resistant to Radiation; apart from that, any Sludge that you DID destroy with Radiation or Poison would quickly be "repalced" by new Growth.....

[Hystrix]

I'd use nukes, then mop up with Skelebots and Psi-Stalker volenteers. I think one thing folks are forgetting the use of smoke grenades and mini-missles. Smoke tends to really mess the bugs up. I think it messes with thier communication as well (?). That and equip some Psi-Stalkers, Dog Boys, and Human Spec-Force troops with CS-issue Plasma Flame throwers.

There will have to be some humans in the hives to giude the 'bots. Of couse those humans would be in PA (like Super Sam, Mauler, and Spec Forses Sam)...

[Hystrix]

Better yet, make nanobot versions of the parasites that do the same thing...you can control them to go after the queens and warriors first.

Maybe with Archies help... ooo, there's an idea!

[Thinyser]

Do some research on what type of chemicals can hurt them... ya capture a few and do experiments on them. Once you have found the nastiest chemical you can, synthisize truckloads of the stuff, load up the skelebots with sprayers full of the stuff (with the full auto laser rifles connected to their power suply as back up) and send them into the hives...spritz and spray with the Uber RAID and when that runs out push farther in using their laser rifles as the next wave comes in with a fresh load of chemicals...
rinse & repeat

Immune to Poison and Radiation. Even their food is completely immune to Poison, and higlhy resistant to Radiation; apart from that, any Sludge that you DID destroy with Radiation or Poison would quickly be "repalced" by new Growth.....

What book are these bugs detailed in.
Even if they are imune to all the things we consider poison that shouldn't mean that you couldn't do research and find a chemical that was debilitating in some way... if they are organic then some chemical will hurt/kill/incapacitate them...think something like in Alien Nation they can get drunk off of spoiled milk...or in Evolution they can be killed by the active ingredient in shampoo (salineium sp?) If they are biological then they have a weakness you just have to find it before you can exploit it.

[Killer Cyborg]

I think there'd be a problem with the psi-stalkers if you just wiped them out in one fell swoop. It would throw a curveball into the foodchain.

You know, that right there is a great reason for the CS to target the bugs next.... if the psi-stalkers run out of food, they'll likely migrate south and hunt mages, monsters, and psychics there....

[Sentinel]

Get a high-level mutant from HUII with Control:Insects, and get the Xitictix to start killing each other.

[Hystrix]

Get a high-level mutant from HUII with Control:Insects, and get the Xitictix to start killing each other.

How many insects can he control at a time?

About a hundred. Of course Xiticix arn't ther same as ordinary insects or even muntant insects.

[Sentinel]

Get a high-level mutant from HUII with Control:Insects, and get the Xitictix to start killing each other.

How many insects can he control at a time?

About a hundred. Of course Xiticix arn't ther same as ordinary insects or even muntant insects.

I would agree to some stipulation of a penalty assesed by this being an incredibly difficult task. Perhaps give the Xitictix a saving throw and a bonus to resist.
High level should be taken to mean 9th level or higher.

[cornholioprime]

Get a high-level mutant from HUII with Control:Insects, and get the Xitictix to start killing each other.

How many insects can he control at a time?

They are Insect LIKE, NOT true insects themselves. They're independently SENTIENT, although blindly loyal to the Hive, remember????

[Mack]

They won't have to worry about that for a couple centuries, and they can/would have evolved.

If by "evolved" you mean "die of starvation".....

[Nekira Sudacne]

hrmm...this brings up a disturbing question...what will happen to the psi-stalkers if the CS was ever successful in driving every supernatural being and mage from the planet?
I imagine they'd have to subsist on the ley lines...but they wouldn't be too thrilled about that.

ummm, they can take it from normal psychics too ya know. . .

[Drakenred®™©]

I would train a few mages with the Spell of legend from RIFTER 29 then sneek them in and set them off, yes its slower than a nuke but more environmentaly freindly than creating a radioactive shell

[cornholioprime]

The Grand Cannon from Robotech, the Sister Ray from FF7, the Zeus Cannon from the Final Fantasy Movie.

Introduce them to gangsta rap, drugs, bling-bling, pimpin', incest, child abuse/neglect/molestation, politics, etc. and watch them slowly proceed down the road to self-destruction.

WHAT in the Nine Hells are you talking about?????

[Drakenred®™©]

The Grand Cannon from Robotech.

that will not work to well since you would have to build it under the hives, and somehow I dont think they will like that very mutch

, the Sister Ray from FF7,.

I thought that was imobile, or am I thinking FF6

the Zeus Cannon from the Final Fantasy Movie..

Introduce them to gangsta rap, drugs, bling-bling, pimpin', incest, child abuse/neglect/molestation, politics, etc. and watch them slowly proceed down the road to self-destruction.

Naaaa

[Hystrix]

:shock: Is it just me or is nuclear weapons a bad idea in a place where random opening can star interdimensional wars?

Nuclear weapons have nothing to do with that. If you kill all the Xiticix with a spell you are gonna have the same PPE backlash... but the Xiticix are a bad thing...they need to be gone...

[Vrykolas2k]

Better yet, make nanobot versions of the parasites that do the same thing...you can control them to go after the queens and warriors first.

Maybe with Archies help... ooo, there's an idea!

And then the nano-bots turn on everything else, having developed their own collective consciousness... thus becoming an even deadlier, harder to vanquish "all devouring swarm".
Bad idea.

[Hystrix]

else, having developed their own collective consciousness... thus becoming an even deadlier, harder to vanquish "all devouring swarm".
Bad idea.

Right notice in my post I left out the word "good."

[Vrykolas2k]

Guess you could dose 'em up with like Raid or something...

[Thinyser]

Guess you could dose 'em up with like Raid or something...

that was my idea from earlier in the thread but I was informed they wer immune to all poisons.

[Killer Cyborg]

Guess you could dose 'em up with like Raid or something...

that was my idea from earlier in the thread but I was informed they wer immune to all poisons.

Not according to the offical Palladium adventure "The Green Death," in which the CS develops a gas designed to kill xiticix.

[cornholioprime]

Not according to the offical Palladium adventure "The Green Death," in which the CS develops a gas designed to kill xiticix.

Where did you find that?

Yeah, where DID you find that??

[Vrykolas2k]

The Grand Cannon from Robotech, the Sister Ray from FF7, the Zeus Cannon from the Final Fantasy Movie.

Introduce them to gangsta rap, drugs, bling-bling, pimpin', incest, child abuse/neglect/molestation, politics, etc. and watch them slowly proceed down the road to self-destruction.

[Killer Cyborg]

Not according to the offical Palladium adventure "The Green Death," in which the CS develops a gas designed to kill xiticix.

Where did you find that?

Yeah, where DID you find that??

Came with the GM's screen, I think.

Rifts Adventure Book
First Printing, 1996

"Slavers, Xiticix, & the Green Death!"
by Patrick Nowak
with additional text and suggestions by Siemieda.

Takes place in and around the barony of Markeen.
Not to give a spoiler, but the "Green Death" is a biological agent officially called ZK-12.
Looking over the text, it is actually an alien spore that is incredibly toxic, and are deadly to every species except for adult dragons, vampires, splugorth and such.

Anybody exposed to the green death must make a save at 18 (including only bonuses from PE) or they die.

I was mistaken, though... the CS did not develop this particular weapon.

[Vrykolas2k]

Not according to the offical Palladium adventure "The Green Death," in which the CS develops a gas designed to kill xiticix.

Where did you find that?

Yeah, where DID you find that??

Came with the GM's screen, I think.

Rifts Adventure Book
First Printing, 1996

"Slavers, Xiticix, & the Green Death!"
by Patrick Nowak
with additional text and suggestions by Siemieda.

Takes place in and around the barony of Markeen.
Not to give a spoiler, but the "Green Death" is a biological agent officially called ZK-12.
Looking over the text, it is actually an alien spore that is incredibly toxic, and are deadly to every species except for adult dragons, vampires, splugorth and such.

Anybody exposed to the green death must make a save at 18 (including only bonuses from PE) or they die.

I was mistaken, though... the CS did not develop this particular weapon.

Ya, I knew what you were talking about, I have that book, screen stuff... it's made from some alien plant, I think it's the spores or something.
I'll have to look that one up. It's biological though, not chemical, if I remember correctly.

[Killer Cyborg]

It's biological though, not chemical, if I remember correctly.

Yes, but it's still a save vs. toxin or lethal poison.

[Killer Cyborg]

Hopefully that crap don't fall into the wrong hands

The adventure is set up so that the stuff will all be destroyed by the end of the adventure.
Of course, all rules are optional... so a GM doesn't have to play it that way... or he can reintroduce the green death in another adventure later...

[Vrykolas2k]

Hopefully that crap don't fall into the wrong hands

The adventure is set up so that the stuff will all be destroyed by the end of the adventure.
Of course, all rules are optional... so a GM doesn't have to play it that way... or he can reintroduce the green death in another adventure later...

Actually when I ran it... the diabolic and the miscreant PCs ended up keeping some of it. One's a scientist, the other is a scholar...

[Killer Cyborg]

Hopefully that crap don't fall into the wrong hands

The adventure is set up so that the stuff will all be destroyed by the end of the adventure.
Of course, all rules are optional... so a GM doesn't have to play it that way... or he can reintroduce the green death in another adventure later...

Actually when I ran it... the diabolic and the miscreant PCs ended up keeping some of it. One's a scientist, the other is a scholar...

I let my players keep some of it.
They're too afraid to use it, they don't trust anybody else with it, and they don't have the skills to replicate it.

[Vrykolas2k]

Hopefully that crap don't fall into the wrong hands

The adventure is set up so that the stuff will all be destroyed by the end of the adventure.
Of course, all rules are optional... so a GM doesn't have to play it that way... or he can reintroduce the green death in another adventure later...

Actually when I ran it... the diabolic and the miscreant PCs ended up keeping some of it. One's a scientist, the other is a scholar...

I let my players keep some of it.
They're too afraid to use it, they don't trust anybody else with it, and they don't have the skills to replicate it.

[Mech-Viper Prime]

Hopefully that crap don't fall into the wrong hands

The adventure is set up so that the stuff will all be destroyed by the end of the adventure.
Of course, all rules are optional... so a GM doesn't have to play it that way... or he can reintroduce the green death in another adventure later...

Actually when I ran it... the diabolic and the miscreant PCs ended up keeping some of it. One's a scientist, the other is a scholar...

I let my players keep some of it.
They're too afraid to use it, they don't trust anybody else with it, and they don't have the skills to replicate it.

hehe

[R Ditto]

A kill bugs thread?
At this time, I'm in a mood to like destruction, lots of destruction, copious amounts of unbridled, unadulterated, insane amounts of mass destruction... or tactics that are sneaky, slow or down right wrong...

Well, for a CS type approaches...

1: Set up a ton of 20mm Phalanx 20mm CIWS based systems up at a secure location near a hive. Preferred ammo being depleted uranium or tungsten, both excellent AP materials. Back up with SRM and MM launchers along with many 40mm auto-grenade launchers. All systems operated by remote, computers and/or robots.

2: Tick off bugs big time, run like made to CIWS position.

3: At range of several miles, SRM volleys fired and CIWS sees huge "blob" on radar coming "in range" and opens fire at 133 rounds per second per gun, with estimated 1,000+ rounds of ammo per CIWS belted ammo/magazine.

4: After close to 10 seconds of CIWS fire, ammo runs out, MMs fired, 40mm GLs open fire with frag rounds.

5: Panic upon finding out bugs don't mind lacking elbow room to the point 10-100 times more bugs than expected show up than estimates showed based on apparent hive size.

Other ideas.
Kamikaze DHT loaded with explosives, more explosives, a lot of debris to act as shrapnel, more explosives, plus perhaps some highly flammable stuff on top of that. Shockwave/overpressure alone should cause some serious trouble for the bugs.

Chemical warfare.
Not poisons, not toxins, not bio-weapons, but good old fashioned chemicals. Find a bug version of Tear Gas, Knockout Gas, Pepper Spray or Cyanide.

Overkill.
Locate pre-Rifts US Ballistic Missile Submarine, score up to 192 thermonuclear warheads, each with a possible yield of around 100-200kt. Refurbish, rig up all sorts of delivery methods from Skelebot spin-offs of dog sleds to remote control aerial vehicles to simply refitting them to use like bombs.


BBQ, high tech style.
Carpet bombing and Thermite, enough said...

Ultimate machinegun.
Take a mass driver that can accelerate a few kg of mass to supersonic speeds in a single second. Take basic capacitor system and redesign weapon to instead fire small high density 5mm/3 gram slugs.
If a system could kick out enough power to fire of 2kg slugs each second, it should be possible to pulse the energy and instead fire off hundreds of smaller rounds per second and at speeds that will turn them into hypersonic death. I'm thinking 400 rounds per second at speeds of mach 10+. If the bullet speed isn't bad enough, the possibility of air friction turning the rounds into a plasma state makes things worse.
Liquids can be dangerous at high speeds, I've seen systems that use water to cut metal and stone.

Reach out and touch someone.
Get a few "big" artillery guns, like the big one that can fire off nuclear shells, and toss in a high tech twist of mass drivers augmentation on top of high grade propellant and rocket assisted shells. Park a few feet outside of bug territory, and then light up their life.

MLRS.
A lot of rockets, cheap, no pricey guidance systems, just a lot of long range rockets with a lot of explosives, cluster warheads, plasma warheads, fragmentary warheads and perhaps even nuke warheads. Have some rockets carrying bunker busters loaded with stuff like plasma warheads (should be nasty detonating in enclosed areas)

Lazlo type approaches.

Overkill, type 2.
The one spell that summons a sphere that contains anti-matter and overall does ?D?x100 MD.
Quickly place the sphere into a vacuum chamber with potent magnetic bottle. When spell 'fades' leaving anti-matter exposed, vacuum and magnetic field prevent anti-mater from going off. Harvest much anti-matter in this manner. Make tech or TW based hand grenades. A single milligram in a hand grenade would have an "energy release" equal to 40 tons of explosives. a gram would be equal to the "energy release" of 40kt of explosives.
Alternatively, "teleport" anti-mater out of magnetic bottle/vacuum into or onto a hive, where exposure to air will cause an impressive explosion.
Heck, make special rail guns that fire magnetically charged slugs that contain a small vacuum pocket that suspends anti-mater, when round hits and breaks apart, anti-mater is released, and "boom" on a huge scale.
Heck, make TW TK gun that fires TK vacuum packets containing anti-matter. A few MD for TK bolt, and total annihilation for anything standing within a few dozen feet of what just got smacked by a 1 milligram pack of anti-matter.

Burn in... someplace really hot...
For bugs near a Nexus Point, get a high level Fire Warlock, and a Major Fire Elemental. Pull out Plasma Bolt. For Major Fire Elemental, that's the ability to toss 18D6 MD plasma bolts 9 times per melee for 30 melee rounds at ranges of 30000ft (yes, as in 5.6 miles)
For Fire Warlocks and Minor Fire Elementals, it's still 18D6 MD per plasma bolt, equal to # of HtH attacks. Just have the Fire Elementals bug out before they get swarmed, or have them toss out walls of fire.

Fresh air is bad.
AS above, but with Air Warlocks/Elementals.
The Mega-death is from the Major Air Elemental and Wind Blast... 100,000ft range, plus nasty triple effects of a nexus on the already impressive damage, and the abundant PPE available from Major Elemental and Nexus, and the +6 strike for Wind Blast.
Tornado and Wind Cushion to deal with bug swarms.
Toss in Circle of Rain for Major Air Elemental, see if the bugs fly good when wet, then toss in electrical spells for fun.
Alternative, have Air Warlock and Major Air Elemental work with TW to create the ultimate in long range TW weapons.

Rock on.
Slow method with Earth Warlocks/Elementals.
Encase Objects in Stone Or Create Clay + Clay to Stone, and a nuke... Bugs see rock fall, bugs get bored with rock, someone ticks off bugs, bugs swarm into air, bugs help grow big mushroom.
Sculpt and Animate Clay Animals + explosive devices + backup from mages with invisibility and/or teleport...
VTOL Craft + unhappy Greater Earth Elemental + 1 or more mile altitude + spells like create Wall of Stone/Iron or (Create Clay + Clay to Lead + Create Clay on top with Clay to Stone/Iron for outer layer of clay) + gravity + terminal velocity = "The sky is falling!"
Slow, but sure to really annoy the bugs.
Imagine this... Earth Warlocks are on a VTOL carrying a big metal bin shaped like a giant boot. They create a few tons of clay, straining the VTOL, then they Clay to Lead, cables snap, and anything below is in deep trouble as it gets stomped on by the giant lead filled boot.
Alternative, Earth Elementals underground (maybe tunnels with Dig and reinforced with Create Clay + Clay to Stone/Iron), get near hive, let rip with Earthquake, River of Lava, and toss in some walls to block entrances.
Sand Storm (lots of sand, lots of noise, lots of wind)

All wet.
A tactic similar to VTOL + unhappy Major Earth Elemental, but with VTOL w/ big open container with a Major Water Elemental, and Ten Foot Ball of Ice from a mile up... at 1 ton, it should hurt when it lands...
Better Yet, Major Water Elemental or level 10+ Water Warlock + Wall of Ice, you get a good 7 tons of ice.
“Look ma’, hail the size of shacks!”
Circle of Rain or Summon Storm, should annoy the bugs and hopefully reduce their ability to swarm effectively.
Snow Storm, just to see what happens.

[Mech-Viper Prime]

A kill bugs thread?
At this time, I'm in a mood to like destruction, lots of destruction, copious amounts of unbridled, unadulterated, insane amounts of mass destruction... or tactics that are sneaky, slow or down right wrong...

Well, for a CS type approaches...

1: Set up a ton of 20mm Phalanx 20mm CIWS based systems up at a secure location near a hive. Preferred ammo being depleted uranium or tungsten, both excellent AP materials. Back up with SRM and MM launchers along with many 40mm auto-grenade launchers. All systems operated by remote, computers and/or robots.

2: Tick off bugs big time, run like made to CIWS position.

3: At range of several miles, SRM volleys fired and CIWS sees huge "blob" on radar coming "in range" and opens fire at 133 rounds per second per gun, with estimated 1,000+ rounds of ammo per CIWS belted ammo/magazine.

4: After close to 10 seconds of CIWS fire, ammo runs out, MMs fired, 40mm GLs open fire with frag rounds.

5: Panic upon finding out bugs don't mind lacking elbow room to the point 10-100 times more bugs than expected show up than estimates showed based on apparent hive size.

Other ideas.
Kamikaze DHT loaded with explosives, more explosives, a lot of debris to act as shrapnel, more explosives, plus perhaps some highly flammable stuff on top of that. Shockwave/overpressure alone should cause some serious trouble for the bugs.

Chemical warfare.
Not poisons, not toxins, not bio-weapons, but good old fashioned chemicals. Find a bug version of Tear Gas, Knockout Gas, Pepper Spray or Cyanide.

Overkill.
Locate pre-Rifts US Ballistic Missile Submarine, score up to 192 thermonuclear warheads, each with a possible yield of around 100-200kt. Refurbish, rig up all sorts of delivery methods from Skelebot spin-offs of dog sleds to remote control aerial vehicles to simply refitting them to use like bombs.


BBQ, high tech style.
Carpet bombing and Thermite, enough said...

Ultimate machinegun.
Take a mass driver that can accelerate a few kg of mass to supersonic speeds in a single second. Take basic capacitor system and redesign weapon to instead fire small high density 5mm/3 gram slugs.
If a system could kick out enough power to fire of 2kg slugs each second, it should be possible to pulse the energy and instead fire off hundreds of smaller rounds per second and at speeds that will turn them into hypersonic death. I'm thinking 400 rounds per second at speeds of mach 10+. If the bullet speed isn't bad enough, the possibility of air friction turning the rounds into a plasma state makes things worse.
Liquids can be dangerous at high speeds, I've seen systems that use water to cut metal and stone.

Reach out and touch someone.
Get a few "big" artillery guns, like the big one that can fire off nuclear shells, and toss in a high tech twist of mass drivers augmentation on top of high grade propellant and rocket assisted shells. Park a few feet outside of bug territory, and then light up their life.

MLRS.
A lot of rockets, cheap, no pricey guidance systems, just a lot of long range rockets with a lot of explosives, cluster warheads, plasma warheads, fragmentary warheads and perhaps even nuke warheads. Have some rockets carrying bunker busters loaded with stuff like plasma warheads (should be nasty detonating in enclosed areas)

Lazlo type approaches.

Overkill, type 2.
The one spell that summons a sphere that contains anti-matter and overall does ?D?x100 MD.
Quickly place the sphere into a vacuum chamber with potent magnetic bottle. When spell 'fades' leaving anti-matter exposed, vacuum and magnetic field prevent anti-mater from going off. Harvest much anti-matter in this manner. Make tech or TW based hand grenades. A single milligram in a hand grenade would have an "energy release" equal to 40 tons of explosives. a gram would be equal to the "energy release" of 40kt of explosives.
Alternatively, "teleport" anti-mater out of magnetic bottle/vacuum into or onto a hive, where exposure to air will cause an impressive explosion.
Heck, make special rail guns that fire magnetically charged slugs that contain a small vacuum pocket that suspends anti-mater, when round hits and breaks apart, anti-mater is released, and "boom" on a huge scale.
Heck, make TW TK gun that fires TK vacuum packets containing anti-matter. A few MD for TK bolt, and total annihilation for anything standing within a few dozen feet of what just got smacked by a 1 milligram pack of anti-matter.

Burn in... someplace really hot...
For bugs near a Nexus Point, get a high level Fire Warlock, and a Major Fire Elemental. Pull out Plasma Bolt. For Major Fire Elemental, that's the ability to toss 18D6 MD plasma bolts 9 times per melee for 30 melee rounds at ranges of 30000ft (yes, as in 5.6 miles)
For Fire Warlocks and Minor Fire Elementals, it's still 18D6 MD per plasma bolt, equal to # of HtH attacks. Just have the Fire Elementals bug out before they get swarmed, or have them toss out walls of fire.

Fresh air is bad.
AS above, but with Air Warlocks/Elementals.
The Mega-death is from the Major Air Elemental and Wind Blast... 100,000ft range, plus nasty triple effects of a nexus on the already impressive damage, and the abundant PPE available from Major Elemental and Nexus, and the +6 strike for Wind Blast.
Tornado and Wind Cushion to deal with bug swarms.
Toss in Circle of Rain for Major Air Elemental, see if the bugs fly good when wet, then toss in electrical spells for fun.
Alternative, have Air Warlock and Major Air Elemental work with TW to create the ultimate in long range TW weapons.

Rock on.
Slow method with Earth Warlocks/Elementals.
Encase Objects in Stone Or Create Clay + Clay to Stone, and a nuke... Bugs see rock fall, bugs get bored with rock, someone ticks off bugs, bugs swarm into air, bugs help grow big mushroom.
Sculpt and Animate Clay Animals + explosive devices + backup from mages with invisibility and/or teleport...
VTOL Craft + unhappy Greater Earth Elemental + 1 or more mile altitude + spells like create Wall of Stone/Iron or (Create Clay + Clay to Lead + Create Clay on top with Clay to Stone/Iron for outer layer of clay) + gravity + terminal velocity = "The sky is falling!"
Slow, but sure to really annoy the bugs.
Imagine this... Earth Warlocks are on a VTOL carrying a big metal bin shaped like a giant boot. They create a few tons of clay, straining the VTOL, then they Clay to Lead, cables snap, and anything below is in deep trouble as it gets stomped on by the giant lead filled boot.
Alternative, Earth Elementals underground (maybe tunnels with Dig and reinforced with Create Clay + Clay to Stone/Iron), get near hive, let rip with Earthquake, River of Lava, and toss in some walls to block entrances.
Sand Storm (lots of sand, lots of noise, lots of wind)

All wet.
A tactic similar to VTOL + unhappy Major Earth Elemental, but with VTOL w/ big open container with a Major Water Elemental, and Ten Foot Ball of Ice from a mile up... at 1 ton, it should hurt when it lands...
Better Yet, Major Water Elemental or level 10+ Water Warlock + Wall of Ice, you get a good 7 tons of ice.
“Look ma’, hail the size of shacks!”
Circle of Rain or Summon Storm, should annoy the bugs and hopefully reduce their ability to swarm effectively.
Snow Storm, just to see what happens.

well this is all well and good, but you going to have to get down the the lower chambers to do damage to them

[Mech-Viper Prime]

What do the Xiticix eat by the way?

a fungus i believe

[Killer Cyborg]

Biological Warfare

Make it so they can't reproduce.

Or just kill them.
Then they can't reproduce anyway.

"Nuke 'em til they glow, then shoot 'em in the dark."

[Vrykolas2k]

What do the Xiticix eat by the way?

a fungus i believe

Not that anyone KNOWS that...