Nexon America announced today that the closed beta of Combat Arms, its free-to-play, online first person shooter, will start on May 30th. The beta test gives players a first chance to experience the heat of battle in realistic 3-D environments. Combat Arms will offer players the opportunity to face off in multiple theaters, including a junkyard, industrial plant and weapons factory, through multiple game modes. Players will experience regular content updates, such as new weapons, gear, maps, and more free game modes. Combat Arms is slated for commercial release later this summer.