April 20, 2011: Version 1.1 now contains the final three chapters of the single player story.April 21, 2011: Version 1.2 adds in the first two sections of the multiplayer story.April 22, 2011: Version 1.3 has the third section of multiplayer.April 25, 2011: Version 1.4 includes the fourth part of multiplayer co-op.PlayStation 3 Trophies: Gain new Trophies for your collection.Xbox 360 Achievements: Boost your Gamerscore with a huge list of Achievements.Multiplayer Tips: Strategies for completing co-op.Walkthrough: A walkthrough of the game's story.
