No trailer is available
Now that was Epic! No one has ever made a FPS Aliens game (Let alone a Pulse Rifle) This is amazing. And I can't wait for Aliens: Colonial Marines! Also (Don't know if you already know) Check out AvPGalaxy, a Website that gives Info of Alien and Predator, If you scroll down the page (Or go on next page) a 13 Minute Footage of A:CM is available.
DUDE THIS IS F**** AWESOME YOU MUST ADD ME! XD