ASPYR Media has begun shipping Call of Duty 4: Modern Warfare for Mac. The game moves past the World War II theme of previous versions and into a modern setting. Gamers take the role of US Marine and British SAS soldiers, using the latest advanced weaponry to fight battles. This release also includes a multiplayer mode that allows gamers to gradually gain additional weapons, gear, and camouflage.

The soldiers must fight a group of Russians that have emerged from a civil war, and a group in the Middle East that has overtaken its government. Battlegrounds include Ukraine, Azerbaijan, Russia, and other places in the Middle East. Night vision, grenade launchers, anti-tank missiles, and airstrikes can all be used for fighting. Call of Duty 4: Modern Warfare for Mac is available now for $55.