IGN writes: "When it was released last year, the slogan for Army of Two mentioned that co-op wasn't just a mode -- it was the game. Tearing across the world with two mercenaries, both of whom exalted in kicking butt and blowing things up, was fun. Unfortunately, the weapon customization seemed a bit limited and the action in each chapter seemed over a bit too quickly, holding it back from being an incredible co-op experience. Seeking to address these issues, EA Montreal has been hard at work refining the next chapter in the Rios and Salem storyline, Army of Two: The 40th Day. In the past few months, we've gotten a quick taste of the multiplayer modes, but we haven't been able to sit down with the single-player storyline for a significant portion of time. Fortunately, this was addressed at a recent press event, where I got a chance to partner up with other journalists to fight through the first few chapters of the game."