Army of Two is miles better than Denied Ops had ever hoped to be. But the AI for your alternate character is rather clumsy. So unless you play proper co-op you won't enjoy it that much. It's incredibly short and while there's a multiplayer mode, it's too basic to be considered a worthy addition. As it stands, Army of Two is the leading game built around the idea of co-op but the AI, controls and replay value let it down considerably.