The mistake that Paul Anderson made with AVP is the same mistake that was made in AVP:R and this game.
all these developments abandoned the idea of Alien vs. Predator vs. Marine which was in the original PC game (as well as the game way back on the Atari Jaguar).
This type of game works best as a FPS where you get to be any of the 3 species but, considering the hit GEARS OF WAR, it should also work well as a TPS.
I would have gone for a simultaneous release on DS and the PSP with internet play which allows players to choose any species and have a free-for-all.