The game manual that comes with the Xbox 360 version says so you and your partner will overwhelm the enemy complete successful missions and become an Army of Two The only reason I can think of it being called Army of TWO is SPOILER FOLLOWING Salem and Rios start a PMC at the end of the game called Trans World Operations TWO displaying them in gear bearing the logo TWO END SPOILER Also since the title of the game is Army of Two not Army of 2 it should be known as AoT not Ao2 contribs