has been in beta on the Xbox 360 since February 5th. After an initial closed stage, it opened up for everybody on March 26th and added achievements. Towards the end of this month, players will be able to get the full version of the game when it is finally released.
On April 22nd, the multiplayer shooter will be available to download for FREE from the Xbox LIVE Games Store. After that point, the game will be updated regularly with new content, including daily co-op campaign missions and new multiplayer maps and weapons.
The game will be exclusive to Xbox LIVE Gold members as it is a multiplayer title.