Warhammer 40,000: Space Marine Released, Exterminatus DLC Announced

Haven't seen a press release yet but Warhammer 40,000: Space Marine is now available on Steam and presumably via other outlets. Additionally, a few days ago THQ announced a free DLC coming in October, which will unlock co-op mode, entitled Exterminatus.
Step into the armor of a relentless Space Marine and use a combination of lethal and deadly weapons to crush overwhelming alien forces. Immerse yourself in an intense and brutally violent world based on the richest science fiction fantasy ever created.

In Warhammer® 40,000® Space Marine® you are Captain Titus, a Space Marine of the Ultramarines chapter and a seasoned veteran of countless battles.

A millions-strong Ork horde has invaded an Imperial Forge World, one of the planet-sized factories where the war machines for humanity's never ending battle for survival are created. Losing this planet is not an option, but a darker and far more evil threat is lurking large in the shadows of this world.

With an Imperial liberation fleet en-route, the Ultramarines are sent in to hold key locations until reinforcements arrive. Captain Titus and a squad of Ultramarine veterans use bolter and chainsword to take the fight to the enemies of mankind.

Key features:
'¢ Storm Into Battle Step fearlessly into the heart of combat as an unstoppable Space Marine. Never hide, never cower, just purge all that stand in your way.
'¢ Unleash Visible Violent Death Using an innovative new combat system, switch seamlessly from high-caliber ranged weapons to devastating close-combat strikes. Taking out an enemy has never been so satisfying.
'¢ Experience the dark future of Warhammer 40,000 Jump into a rich universe of awe-inspiring landscapes, deadly enemies, immense battles and ruthless annihilation.
'¢ Take the Battle Online Form your own Space Marine squad or Chaos Space Marine warband and face off in 8 vs 8 online matches. Gain experience and unlock new weapons and armor to customize the Devastator, Assault, and Tactical Marine classes.
I wanted to try the demo but never got the chance, but from what I've seen this isn't really an RPG, which explains why they dropped that part out off press releases after it was announced as an RPG/TPS. If it is indeed not an RPG, expect no further coverage from GameBanshee.