Bug

In Act V, Part 1 the game just hangs at enemies turn. You can only quit mission and loose all XP. But even when starting over, its the same thing on the same turn (after that large lizard with a gun or whatever appears and is about to make its turn).

Also shooting lizards is not so exciting.

Anton Bielousov about Warhammer 40,000: Deathwatch - Tyranid Invasion, v1.3