Aliens: Colonial Marines is a squad-based first-person shooter in which the player controls four Colonial Marines, each with a different personality and primary weapon. Each player character can carry additional weapons including a flamethrower, pulse rifle, smartgun, pistol, RPG, and many types of grenades. The player controls one marine at a time, issues orders to the others using context-sensitive commands, and may switch between characters at any time.
Look at all the facehuggers!
If it was me, I'd get the granade out..
If i were you, i´d choose from between learning to spell "grenade", or taking euthanasia needle.
This is not in the game!