The more honor the player has, naturally, the more Predators will want to join the clan. As the player kill enemies, he can rip the skulls from their corpses in honor of the hunt. The Predators have a straightforward resource model that's effectively based on honor. The Marines also have three support units, one for healing and a synthetic which can deploy gun turrets and has a motion detector for picking up offscreen movement, the third unit, the commtech is the basic support unit, whose job it is to call for extra troops and repair atmosphere processors. There are a diverse number of marine combat units, including pulse rifle-equipped infantry, flamethrower troopers, and smartgunners. The Colonial Marines gain credits by killing enemies and repairing atmosphere processors, and these credits can be put toward upgrading troop abilities and calling in new units via dropships that stop at nearby landing beacons.

Each race has a distinct method of obtaining new troops. The game is strictly focused on unit management and combat. Unlike as in the most other real-time strategy games in Aliens versus Predator: Extinction the player(s) do not have to do any building and base construction.

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