Army of Two: The 40th Day attempts to add a layer of strategic considerations to co-op based third-person shooters. Considering the bulk of the shooter genre rarely gets more complicated than "aim reticle at face, pull trigger," getting you to do a bit of thinking as you shoot is a welcome concept, much like it was in the first Army of Two game. But the rest of the balance is off. Most of your enemies go down so quickly that as long as you utilize cover and are a decent shot, it's way faster to just aim the reticle at an enemy's face and pull the trigger. The core of The 40th Day feels decidedly hollow as a result, and this short shooter is a mostly mindless and repetitive experience.