Combat Arms is a multiplayer free-to-play first-person shooter game developed by Doobic Studios for Microsoft Windows. The game plays similar to titles such as CrossFire and Counter-Strike with different modes, such as: One Man Army, Elimination, Capture The Flag, Fireteam, Quarantine Regen, Elimination Pro, Search and Destroy, Seize & Secure, Spy Hunt, Bombing Run, and Hired Guns.