Atari has released a playable demo of ArmA: Combat Operations, allowing you to try out the game developed by Bohemia Interactive and due to ship in North America on May 1st 2007. In ArmA: Combat Operations, players will engage in a story-driven single- player campaign or take part in huge multiplayer battles with more than 50 players on one battlefield simultaneously. Featuring a vast environment with more than 250 square miles to explore, ArmA: Combat Operations allows players to pilot or drive more than 30 vehicles including APCs, tanks, self-propelled anti-aircraft guns, helicopters and fighter planes. The game features an extremely powerful built-in editor which encourages players to create and share complex missions as well as import user-created units and maps. ArmA: Combat Operations is already available across Europe as Armed Assault.