The One Man Army bag is seen in the Multiplayer of Call of Duty: Modern Warfare 2, if the Tier 1 Perk One Man Army is selected. It takes up the player's secondary weapon slot, and is selected as if switching to the secondary (Triangle on the PS3, Y on the Xbox 360, and 2 on the PC). As soon as it is selected, the HUD will read "One Man Army". The class selection screen will then appear, and after the player chooses their class, it will be switched to in the time period of five seconds (three if OMA Pro is being used). The bag will then be put away and replaced with the primary weapon of the selected class.