An epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes. Plan your attack using an unlockable arsenal of weapons with countless loadout configurations against a wide variety of aliens. Blaze your way through an overrun, off-world colony, eradicating the alien infestation in environments ranging from the icy planet's surface, to a subterranean lava-flooded mining facility.
Extermination is a campaign which unites single maps
Extermination is a campaign which unites these maps:
Midnight harvest 1
Midnight harvest 2
Full Treatment - Syntek hospital
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