About Aliens versus Predator: Extinction

Official Description:
Control an Alien hive, direct a Predator clan, or lead an elite squad of Colonial Marines to fight for the survival of your race. Experience the Alien versus Predator universe from the perspective of the Aliens, the Predators, or the Colonial Marines in seven unique missions customized for each race. Control never-before-seen Aliens, Predators or Marines, and upgrade your weapons and abilities to gain a tactical advantage.