Call of Duty: Black Ops takes place during the Cold War, in the 1960s. The story focuses on the CIA's Special Activities Division (SAD) Studies and Observations Group (SOG) (originally and currently called “Special Operations Group”) – backed clandestine black operations carried out behind enemy lines. These missions take place in various locations around the globe such as the Ural Mountains in central Russia, Cuba, Laos, and Vietnam. The single-player campaign revolves around an experimental chemical weapon codenamed “Nova-6”.
Black Ops was a great game, which didn't really have a particularly taxing engine. Even in single card mode the HD6870 Eyefinity Edition can power this game at the selected resolution. CrossFire scaling is pretty good, enhancing both minimum and average frame rates.