Aliens vs. Predator: Extinction A team of Colonial Marines has been dispatched to explore a new planet, LV-742. When their scans reveal the presence of both Aliens and Predators, it becomes a three-way war and only one species will survive! Create and control your own forces as you choose a side to fight for -- Marines, Predators and Aliens all have their own tactics and goals Roam an eerie, multi-dimensional environment as you plan an attack strategy and unleash destruction with incredible weapons Fight your way across 21 missions as you Upgrade your weaponry & units and prove you're tough enough to survive!