So I've been following some tyranid army list threads and I've seen some things like this:
5x6 ymgarl stealers - 690
6x3 spore mine clusters - 180
When reading through the 6th edition Allies and double FOC rules I got the impression that Tyranids could not have allies. Allies can't be from the same codex, so I don't see how people can be fielding Tyranid lists with 5 elite choices and so on...
Some clarification on this Tyranid matter would be very helpful.
Thanks