COD: MW2

Call of Duty: Modern Warfare 2 (often shortened to Modern Warfare 2 or MW2) is a first-person shooter video game developed by Infinity Ward and published by Activision for the Xbox 360 and PlayStation 3 video game consoles and the Microsoft Windows operating system. Officially announced on February 11, 2009,the game was released worldwide on November 10, 2009.It is the sixth installment of the Call of Duty series and the direct sequel to Call of Duty 4: Modern Warfare, continuing along the same storyline.It was released in conjunction with two other Call of Duty games: Call of Duty: Modern Warfare: Mobilized for the Nintendo DS, and Call of Duty: Modern Warfare: Reflex, a port of Call of Duty 4 adapted by Treyarch for the Wii console. In addition, a comic book series based on one of the game's characters was also produced, entitled Modern Warfare 2: Ghost.

Modern Warfare 2 has received very positive reviews from various gaming websites, attaining a 94% aggregate score on Metacritic, with praise stemming primarily from its in-depth multiplayer component. Upon its release, the game sold approximately 4.7 million copies worldwide in 24 hours. On June 15, 2010, Activision confirmed that the game had sold over 20 million copies worldwide, making it the best-selling game of all time in the UK, and the second best-selling game of all time in the US.

The player assumes the role of various characters during the single-player campaign, changing perspectives throughout the progression of the story.

Each mission features a series of objectives that are displayed on the head up display, which marks the direction and distance towards and from such objectives. Damage to the player is shown by blood shown on the screen. The player's health regenerates as time passes. Tasks vary in their requirements, having the player arrive at a particular checkpoint, eliminate enemies in a specified location, stand their ground to defend an objective, or plant explosive charges on an enemy installation. The player is accompanied by friendly troops who cannot be issued orders. Laptop computers that contain enemy intelligence appear throughout the campaign and may be collected.