In ArmA: Combat Operations, players will be able to engage in the story- driven single-player campaign or take part in huge multiplayer battles with more than 50 players on one battlefield at once. Featuring a vast environment with more than 150 square miles to explore, ArmA: Combat Operations will allow 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 allows players to create and share complex missions as well as import user-created units and maps.