Really good at destroying weaponry. Tyranid organisms secrete spores that cause machinery and weaponry to break down. They also focus on spewing acid, and otherwise making the environment extremely hostile.
> Eldar
Eldar are fast, stealthy and psychic. Higher-than-normal proportion of psychic Tyranid organisms, or the ability to disrupt psyker abilities - extremely powerful Hive-Mind conduits, or a pronounced Shadow in the Warp.
Also, excellent peripheral vision and danger-sense. The Hive-Mind is focused on seeing them coming.
> Chaos
Good at doing damage. Chaos tends to either be really tough, or have really large numbers of soldiers. But paradoxically, Chaos is so chaotic it's impossible to properly 'optimize'.
How the fuck do you deal with daemons, who can be literally anything?
Kevin Hall
Nanomachine ripper swarms In the distant future there is only grey goo
Juan Robinson
>orks They adapt to become part of the greenskin's larder.
Owen Wilson
>How the fuck do you deal with daemons, who can be literally anything? shadow in the warp
Joseph Turner
>Imperium
Genestealer cults, infiltrate a dozen worlds and bring them to chaos before the big invasion comes. Would also help avoid the Krypman gambit since the Tyranids probably have figured out the gig. Gun straight for Terra but their main goal is the Imperium concentrating on stopping the direct main push while the splinter fleets gobble up everyone on the side.
>Eldar
A single Zooey managed to fuck up a craftworld by sucking up its infinity circuit so that
>Chaos
A good question. My first thought is actually a tyranid gun line. Cultists would go down like chumps to tyranid artillery and guns and force chaos to attack directly.
Mobile squads of warriors would counter attack and lictor/genestealer squads zero in on sorcerors.
The stealthy tyranids would probably also evolve to be stronger in close combat to deal with demon lords.
Mason Bell
>Tau
Super mobile, stealthy with a focus on breeds to killing their shiny toys and anime heroes
Julian Adams
Not much you can change to counter. Kinda hard to have a counter for captured stars and losing your atoms.
Asher Perry
After centuries of war, Tyranids will look like dun dun dunnnnn... Humans. That's right. Humans are the final form of the apex predator.
Henry Ward
Nonsense, layers of loosely-connected ablative armour is great against Gauss and takes advantage of the way it works, the Tyranids adapt their units to be slightly larger but a similar weight, putting more distance between their organs and the outer layers of their plating that are being stripped.
Necrons are the most difficult to adapt to, but it's not as if they magically defy any and all optimisation attempts against them, virtually anything can be optimised against.
Gabriel James
>mfw no bug spray
Bentley Rogers
>Orks
A gigantic pile of dead Tyranids
Lucas Watson
Wasn't that the origional squig origin? That they were Nids, but the orks adopted them because they were proper orky.
William Price
>A gigantic pile of dead Tyranids This honestly might work.
Orks thrive off combat, a hive fleet adapted to orks would be passive and un-fun to fight. They just sort of show up as giant hungry fluffy bunnies. Eventually the orks get tired of killing them, and leave because the fluffy bunny nids ate all the food.
Jonathan Martinez
>tyranids fake their own deaths to trick ork armies that pass by and attack unexpected
Logan Brown
after Ghazzy showed up and massacred every single Tyranid on the planet, maybe the next few dozen waves of Hive Fleets will learn to evolve into something that isn't so fucking embarrassing.
Brayden Collins
>They just sort of show up as giant hungry fluffy bunnies. I'm pretty sure there's a book about an alien race doing something like that
Jeremiah Cox
Just big lumps of bone that don't bleed, don't make any noise and just disperse fungicide at a moderate rate.
Isaiah Butler
You fool, this is a race that views demon invasions of their ships in the warp as a party to stave off boredom. Sneaky nids will attract sneaky orks that love to "kill all estelffy like". Or just cause goffs to go apeshit on carcasses in the hopes they'll fight back and they can work up an appetite.
Joshua Butler
Time travel?
Austin Morales
...
Wyatt Ramirez
The biggest advantage for necrons is that the tyranids have no reason to fight the actual necrons. So even if tyranids attacked, the necrons could just chill in their tombs. Tyranids would not go after the tomb since there is no biomass there and the necrons can spend their time consolidating their forces for actual threats (ie other dynasties).
Tyler Powell
>Imperium I would imagine gaunts having some refractive crystal bs in their carapace to make them more resistant to las-fire: won't do shit against space marines but making your cannon fodder resistant to the guard's main weapon would probably make help with wave tactics / force them to use other weapons with more limited ammo / worse logistics
>>Eldar and chaos One big thing would be more shadow in the warp - iirc SitW is just the pressure of having billions of nids making the local warp too noisy or causing so much interference that it's hard for psykers to concentrate without massive headaches. I don't think SitW alone would be enough to banish daemons but it would make it more difficult for more to show up, and given all Eldar are latent psykers giving the entire enemy army a massive headache seems like a good way to go
>Necrons Rust monsters - or at least figuring out some way to make whatever metal the necrons are made out of decay or weaken
>Dark Eldar Stronger antivenoms, better reaction times, etc
> Just space marines Massive hordes and attrition - marines are amazing warriors but there are only a thousand of them per chapter and most of their ammo is solid - even siege expert marines can't go for too long without resupply