Today, you and a friend can confront the grim reality of war together! 2K Games announced a free update for the PS3, Xbox 360, and PC versions of Spec Ops: The Line that adds a cooperative multiplayer game mode for two players. As usual, expect the PS3 version to be available sometime today, whenever the PlayStation Store updates.
The new co-op mode consists of four objective-based missions, "each with its own unique objectives, environments, and playable characters."