Tyranid Bio-Weapons

In the relentless cheerfulness of the far future, the weapons used by the Tyranids are, just like their armies, home-grown. These weapons are living things, inseparable from their hosts and are counted as a single bio-organism. Some of them fire a "dumb" projectile, whereas other use seeds as their projectile, or even living creatures. The downside to this is that these weapons lack the penetrating power that Imperial and Eldar weapons have. They all trade this disadvantage in for being Assault weapons, meaning they can be fired on the move. Another note is that due to their fleshy and phallic designs, may Tyranid weapons resemble genetalia.

Many of these weapons can be used by creatures of different sizes, but for the sake of simplicity the weapons have been ordered by the smallest creature that can use them. Small creatures are the equivalent of Gaunts, Medium are those comparable to Warriors and Biovores, and Large are those akin to Tyrants and Carnifexes. Then there are two other categories: the Inbuild weapons, often part of the upper bodies of the largest organisms, and the Melee weapons, for the more choppy inclined creatures.

Small

Small weapons are used by Termagaunts, the working class of any Tyranid army, and Gargoyles.

Fleshborer

The Fleshborer is one of the most iconic Tyranid weapons, a simple design that fires a borer beetle that eats its way through anything it comes across during its flight. Being the basic weapon for Termagaunts, stats equal to the Bolter aside from half range and being an Assault weapon, this will prove to be more than enough to kill any unit of IG, Orks, other Gaunts or even basic Eldar units. range 12 srength 4 ap 5 and it is an assult 1 weapon

Spinefists

A lighter weapon, the Spinefists are used in pairs. They shower the target with a hail of poisoned spikes, the sheer amount of darts fired (as in: twin-linked) ensure that the target is hit. A tube runs from the air sac powering the weapon, through the user's arm to its lungs. This means that larger creatures get more mileage out of what is essentially the same weapon, proving that even something as simple as a blowgun can be horribly perverted by the grim darkness of the far future.

Devourer

The Devourer is simply put a lump of flesh that launches a shower of worms onto a target that immediately start to burrow into the target, crawl up to its brain and devour it. In addition to being fucking grimdark, this weapon has a nice range quite dakka for its size, albeit it doubles your Termagaunts in cost. If you take this army in large broods, you will be aiming at your enemy's biggest units to just drown the suckers in dozens of shots.

Spike Rifle

The Spike Rifle is a weapon exclusive to Termagaunts. It is, simply put, a harpoon launcher. That's about it. Statwise it's about as far less imposing as than it's description.

Strangleweb

With this weapon, your Tyranids too can learn how to shot web. The effects of the Strangleweb can be described best as a non-cutting variation of the Death Spinner used by the Warp Spiders: instead of slicing through their opponents it constricts them and maybe crushes them to death. That's a pretty big maybe: wounding even basic Guardsmen at 5+, and rolling against Strength instead of Toughness when trying to wound, this weapon would be best if used against the likes of the Death Guard ... if shooting them was a pretty stupid idea for a Tyranid player in the first place, AND if you could take more of them than 1 per 10 Gaunts.

Medium

Medium weapons are used by Warriors and organisms based on the Vore and Guard bodies.

Deathspitter

The traditional weapon of the Warrior, the Deathspitter works by stripping a large maggot of its shell and hurling it at the enemy. Its huge guts are highly corrosive and can splatter several enemies at once. Serving as a decent weapon against MEQs, you'll want to rely on your rate of fire to deal damage.

Barbed Strangler

Remember that 70's cult classic Zardoz? Sean Connery dressed in red gimp getup and killing dudes like he's Khârn, at the behest of a giant floating head that claims that "The gun is good, the penis is evil." because the gun shoots seeds that create life? Well, the Barbed Strangler chooses to be both. The gun is very basic, a muscled tube that stores its seeds in a sack at the base, and shoots them with a powerful spasm. The seed upon impact greatly expands and sends tendrils to rip and tear through anything that gets in its way. Using the large blast template, you can cause a lot of damage to a blob in a single shot.

Venom Cannon

Seen as the primary anti-tank weapon, the Venom Cannon launches a hail of corrosive crystals by way of a biological railgun. Though not as effective as you'd wish, the Venom Cannon can cause quite some hurt on Aspect Warriors and the like.

Impaler Cannon

A recent addition, the Impaler Cannon is your answer to anything up to AV 12. This beautiful gun fires a bony spine, steered by a shard-beast as the base of the spine, whose innards are ripped from its body when the spike is fired. The spines are launched with enough force to rip through man and machine alike. Though its range is limited, you do not have to actually see your target to be able to shoot it, without a significant downside. Oh, and it has a higher rate of fire than the Imperium-equivalent, the Missile Launcher. What's not to like.

Spore Mine Launcher

Created as a result of fights against the Imperial Guard, the Biovore displays this by being the Tyranids' closest thing to an artillery piece, and having a massive scrotum befitting a Guardsman's huge brazen balls. Armed with the Spore Mine Launcher, it can lob Spore Mines a considerable range. Though not as deadly as most other artillery weapons, the Spore Mines are unique in the way that if they don't land too close to the enemy, you can deploy them onto the battlefield as living mines, serving as an obstacle for your enemy that must be either moved around or shot.

Flamespurt Cannon

It's a Heavy Flamer. Smarter than it's host, the Flamespurt Cannon serves as a bodyguard while the Pyrovore om nom noms the delicious biomass and make it ready for easy digestion. Instead of working together, the weapon and the beast function apart from each other, so both can dedicate themselves fully to their tasks. If they were used, anyway.

Large

Here the biggest of weapons are described, used by the biggest of nasties.

Brainleech Worms

The biggest of Tyranids have devourers loaded with Brainleech Worms instead, a species even more aggressive and hungry than the regular devourer worms.

Stranglethorn Cannon

An upscaled version of the Barbed Strangler, the Stranglethorn Cannon has enough power to deal with even the toughest of foes, and serves as a borderline artillery weapon.

Heavy Venom Cannon

The Heavy Venom Cannon is just that: a bigger version of the Venom Cannon able to deal with bigger vehicles, and it would be a lot more reliable if it wasn't using a Blast template.

Acid Spray

Yo dawg I heard you like Hellhounds so I put a discharge of digestive fluids that works just like a Hellhound's weapon on your Tyranid MC and upped its cost by 100+ points. That's pretty much the gist of the Acid Spray. The problem is that you have a lot of weapons with stats like that, so using an expensive MC that attracts fire like there's no tomorrow.

Fleshborer Hive

Think the Leman Russ Punisher, but replace the Punisher gun with a Fleshborer Hive. That's about it. Because sometimes you have just run out of Troops choices, and you just need 20 Termagaunts worth of Fleshborer fire.

Rupture Cannon

If you want to stop a tank dead in its tracks, the Rupture Cannon is your friend. Firing two projectiles in a short succession, a tick that covers the enemy in a gooey substance, and a seed that upon impact with the goo dissolves at such speed it implodes with enough force to turn a Baneblade inside out.

Inbuild

Certain weapons used by the Tyranids are part of the creatures themselves, instead of being addition to the arms/back.

Flesh Hooks

Until the current edition came out, nearly any species of Gaunt, Warrior and more could use these. They are long bony spines with barbed hooks on the end that serve as both harpoons and possible grapnel for climbing. Now they're Lictor only, count as Frag Grenades, and can be fired for a surprisingly deadly shot.

Bio-plasma

Exclusive to Carnifexes, it is a biological equivalent of a shot from a plasma cannon, and just as deadly.

Bio-electric Pulse

Built into the Trygon, a electrical charge is build up by the creature as it moves, allowing a powerful (and large) discharge. The Trygon Prime increases the range of this blast, and doubles its rate of fire.

Ripper Tentacles

Used by Mycetic Spores, these are long-ranged tentacles able to do significant damage to medium-sized blobs thanks to their high rate of fire (strange choice of words when the weapon in question is akin to beating someone over the head with a tentacle)

Spore Mine Cysts

Build into the underside of a Harpy, you can have it drop a Spore Mine onto something it flew over once per game as if it was making a bombing run. The same rules for the Spore Mines as stated above count here as well.

Cluster Spines

The largest Tyranids have banks of spines build into their carapaces that they can fire when under stress. These hollow spines explode upon impact, dealing significant damage to anything in the area of impact.

Stinger Salvo

Works comparable to the Cluster Spines, except this is more of a barrage of large solid spikes akin to the spinefists.

Thorax Swarm

Certain Tyranids can issue forth swarms of bugs living in their thoraxes to devour anything in short range. These swarms come in three flavors: Electroshock Grubs who electrocute anything they grab onto for a damaging attack, the Desiccator Larvae who drain the target's body of all of its moisture, and the Shreddershard Beetles who Rend their way through their targets, exploding in shards of needles.

Melee

Every Tyranid organism has at least rows of sharp teeth and deadly claws, but some go an extra mile.

Scything Talons

The long, bladed weapons you see on Tyranids of all sizes, they allow a fast barrage of blows onto a target. This is shown in-game as rerolls: the more you have the more likely you are to hit your enemy.

Rending Claws

The iconic claws of Genestealers and the origin of the Rending rule, these claws are both incredibly sharp and hard, allowing you to pick apart even a Terminator with ease.

Bonesword

Psychic swords that feed off the life force of their target, they can inflict Instant Death, and are more likely to do so if used in tandem.

Lash Whip

A classic and the source of many a rule 34, these serve to slow down a target and force it to strike at Initiative 1, allowing the user to strike first, and often to kill.

Crushing Claws

Used only by Carnifexes and Tervigons this massive pair of crab-like claws grants d3 extra attacks to the Carnifex at Initiative 1, which a Carnifex will often strike at unless he's charging.