EA has officially announced Army of Two: The 40^th Day, the sequel to its co-operative shooter where two people high five each other after massacres.

“With ARMY OF TWO: THE 40th DAY, we’re pushing the tactical two-man military team into new battlegrounds offering a completely organic and rich co-op experience to deliver an action-packed co-op shooter this winter,” says Reid Schneider, Executive Producer, EA Montreal. ”As chaos blankets Shanghai, China, you must rely on your partner to survive as you weave through a broken city left devastated in a mysterious wake.”

The game will have players fighting through ravaged city districts of Shanghai, China, as they try to beat the odds and uncover the secret behind the game’s subtitle. It will feature new co-op moves and more.

Army of Two: The 40^th Day will be available for PSP, PS3 and Xbox 360 this winter.