Infinity Ward (Proprietary)

CoD4 MP refers to the multiplayer mode of the first-person shooter game Call of Duty 4. This fourth installment in the Call of Duty series of video games, developed by Infinity Ward, is subtitled Modern Warfare. In contrast to the previous games that were set during the Second World War, this game is set in modern times, particularly 2011, thus the title.

In the game, there are two main conflicts: one, the president of an unnamed Middle Eastern country was executed by a radical leader; and two, a civil war in Russia was started by an ultranationalist movement. The player will take the role of either a British SAS commando or a Reconnaissance Marine of the United States Air Force.

The online multiplayer option gives players access to different game modes. Players must undertake different strategies to complete the mission stated in each mode, such as calling in attack helicopters and air strikes. CoD4 MP is characterized by a unique leveling system that enables the player to unlock items in the game, such as weapon attachments, camouflage schemes, and additional weapons. It also allows players to customize their gear depending on the mission that must be accomplished. Multiplayer games end when the time has expired; the team with the most points wins. The game can also be set on a point-basis; the team that accumulates a predetermined number of points first wins the game.