Call of Duty - Modern Warfare 3 (USA) (v1.21) (NPUB30787) (Update) is an immersive first-person shooter video game developed by Infinity Ward and published by Activision. It is the third installment in the Call of Duty series, and the eighth in the Modern Warfare sub-series. The game is available on the PlayStation 3 gaming console and can be downloaded in the form of a ROM from Romsbase.

The game follows the events of the previous title, Call of Duty: Modern Warfare 2, with the player taking the role of a variety of characters in multiple locations around the world. Players fight against a terrorist organization called the Inner Circle, as well as the Russian Ultranationalists. The game features a variety of weapons, equipment, and vehicles, as well as unique multiplayer maps.

The game features an expansive single-player campaign, which follows the events of the previous title. Players can choose from a variety of characters and locations to complete objectives. Players will also be able to customize their loadout with a variety of weapons, equipment, and perks. The game also features a cooperative mode, allowing up to four players to team up and complete missions.

In addition, the game features an online multiplayer mode, allowing players to battle against each other in a variety of game modes. Players can choose from a variety of maps, as well as create their own custom maps. Players can also choose from a variety of game modes, such as Capture the Flag, Team Deathmatch, and Free-For-All.

The game features a variety of features, such as stat tracking, leaderboards, and clans. Players can also customize their character's appearance, as well as their weapons and equipment. The game also features a variety of downloadable content, including additional maps and game modes.

Call of Duty - Modern Warfare 3 (USA) (v1.21) (NPUB30787) (Update) is an intense and immersive first-person shooter video game. The game features a variety of weapons, equipment, and vehicles, as well as unique multiplayer maps. The game also features an expansive single-player campaign, as well as cooperative and online multiplayer modes. Players can choose from a variety of maps, game modes, and downloadable content.