Arma 2: Operation Arrowhead - Arma 2: Operation Arrowhead is a Tactical, First-person Shooter, Single and Multiplayer video game created by Bohemia Interactive Studios and published by 505 Games.
Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
Arma II - Arma II is an Awesome, Action-Adventure, Military-themed, FPS (First-person Shooter), Tactical, Co-op, Strategy, Single and Multiplayer Simulation developed and published by Bohemia Interactive.
S.T.A.L.K.E.R.: Shadow of Chernobyl - S.
Quake Live - Quake Live is a Fantastic, Action-Adventure, FPS (First-person Shooter), Survival, Single and Multiplayer video game developed by Id Software and published by Bethesda Software.
Insurgency - Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this multiplayer and cooperative Source Engine based experience.