: Introduced protagonists Tyson Rios and Elliot Salem , two ex-Army Rangers turned private military contractors. It established the "Aggro" mechanic, where one player draws enemy fire while the other performs flanking maneuvers.

: The final entry in the series, it moved the setting to Mexico and introduced two new operatives, Alpha and Bravo , fighting against a ruthless drug cartel. Key Gameplay Mechanics

: Set in a disaster-stricken Shanghai, this sequel expanded the "co-op playbook" with more simultaneous moves like mock surrenders and synchronized sniping.

The series is distinguished by several unique tactical systems: