Call of Duty 4: Modern Warfare 2

Call of Duty: Modern Warfare 2 (also referred to as simply Modern Warfare 2 or Call of Duty 6) is a first-person shooter video game developed by Infinity Ward and published by Activision for Microsoft Windows, PlayStation 3, and Xbox 360. 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 will also be produced, entitled Modern Warfare 2: Ghost.
The game takes place five years after the previous installment. The campaign mode is divided between the multinational counter-terrorist group, Task Force 141, which is tasked with eliminating ultranationist Vladimir Makarov, and the U.S. Army Rangers, who are tasked with defending the United States from an audacious Russian invasion. Settings for the game include Afghanistan, Rio de Janeiro, Siberia, and Washington D.C.
Modern Warfare 2 has received highly 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.

Similar to previous installments within the Call of Duty series, 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 HUD, which marks the direction and distance towards and from such objectives. Tasks vary in their requirements, having the player arrive at a particular checkpoint, eliminate enemies in a specified location, stand his/her 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 to unlock several game bonuses.

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