Call of Duty: Black Ops is a 2010 first-person shooter, developed by Treyarch and published by Activision. It was released worldwide in November 2010 for Microsoft Windows, the PlayStation 3, Xbox 360, and Wii, with a separate version for Nintendo DS developed by n-Space. Aspyr later released the game for OS X in September 2012. It is the seventh title in the Call of Duty series and the third to be developed by Treyarch. It serves as the sequel to Call of Duty: World at War.
Set in the 1960s during the Cold War, the game's campaign follows CIA operative Alex Mason as he attempts to recall certain memories in combat in order to locate a numbers station. This station is due to transmit broadcasts to sleeper agents who are bound to use chemical weapons across the United States. Mason and CIA operative Jason Hudson are the game's main playable characters, as well as Red Army soldier Viktor Reznov in only one m...
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