No revenue estimate for XBOX — its rating/review counts don't calibrate to sales the way Steam's do. Reviews and prices only.

Call of Duty®: Black Ops

Call of Duty®: Black Ops takes you deep behind enemy lines into the world of deniable operations as a member of an elite special forces unit engaging in covert warfare, classified operations, and explosive conflicts across the globe. With access to a variety of exclusive weaponry and equipment, your actions will tip the balance during the most dangerous time period mankind has ever known.