"Exterminatus," the late-addition cooperative mode for Warhammer 40,000: Space Marine, will release Oct. 25, publisher THQ said today. It had originally been scheduled for an "early October" release.
Exterminatus has two maps, and lets up to four players take control of a Space Marine in what's essentially a Horde match, fighting wave after wave of increasingly difficult alien enemies.
The mode is free.
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