THQ has announced that its new shooter Warhammer 40000: Space Marine will receive a new co-operative add-on mode next month.
Titled Exterminatus, the downloadable extra mode will allow up to four players to assume roles in an elite Space Marine squad and face off against hordes of enemies as they seek to rack up high scores.
Gamers will be able to choose to play as Tactical Marines, Devastators or Assault Marines and utilise the special abilities of each class, as they earn progression towards their multiplayer ranks.
Exterminatus will feature two different scenarios, Assault on Hab Center Andreas and Escape from Kalkys Facility, each of which includes its own set of challenges and global leaderboards.
The new content will be made available free of charge in October 2011, while the main Warhammer 40000: Space Marine game hits stores this week.
Available for Xbox 360, PlayStation 3 and PC, it is a robust shooter/role-playing experience that puts players in control of Captain Titus of the Ultramarines, a genetically-enhanced warrior tasked with protecting humanity from alien threats.