Here's a new video (NSFW) showing off multiplayer tactics in Aliens: Colonial Marines, the first-person shooter in development at Gearbox Software (taken from the Xbox 360 edition). Word is: "Showing a select number of special abilities on both the Xenomorph and the Marine side, the trailer gives you a glimpse at the various tactical choices that players need to make when playing the game’s competitive, asymmetrical multiplayer."