The likes of Hormagaunts will just be complete cannon fodder to most races. Perhaps when the Nids have been assaulting a base or faction for so long without any success it would trigger a % chance to spawn.

Very true, that and we also don't know the scale that they'll be appearing on yet.

They're Nids, So they'll need to be somewhere on par with Ork numbers to be effective as they are a horde race.

I'm meaning how many NPC's will be on screen at once, there could be hundreds or thousands at once.

I hope they do it would be badass fighting one of these suckers with your mates as your definately not going to solo it

I remember seeing a question asking the devs how many Tyranids would be on one map. So far, they don't even know, they're currently concerned about the number of players on one map.

If I can remember correctly (been a while since I read about it) they have four bone swords and their reactions are the definition of lightning quick.

It probably won't be thousands, hundreds maybe if the engine is powerful enough.

You would need at least a hundred or so.

In Tabletop there so deadly even super characters die to them they are super deadly it will take a good squad to bring it down

If something like a Swarmlord is introduced you'll need more than just a good squad.

It pretty much could wipe out an entire company on it's own.