Army of Two (AoT) is a new game with a focus on cooperative and coordinated strategies. The game is labeled a co-op third-person shooter. Players will join up with either the game's built-in "Partner Artificial Intelligence" (PAI) or other players "to fight through war, political turmoil and a conspiracy so vast it threatens the entire world." Story details are vague at the moment, but the game involves conflicts with private military corporations. The player plays as Tyson Rios and Elliot Salem, two "contractors" and former Army Rangers in a private military company (PMC), a company hired as security or to supplement government military forces. The player may choose one character at the start of each mission; the computer or a second human player controls the other character. The game will feature a unique weapon upgrading system, where just about any part of any gun can be combined. Details on the characters themselves are vague, but between the two, Salem, whoms facemask is adorned with flames, is the younger and wilder of the pair, whilst Rios, whoms facemask is adorned with what appears to be a skull, is the more controlled leader. Both players wear trademark ballistic facemasks, which protect them from bullets, gun-fire and debris.