Activision’s “Call of
Duty: Modern Warfare 3″ has joined the billion dollar club — after just 16 days on store shelves, setting yet another entertainment industry record.
James Cameron’s “Avatar” was the previous record holder for a property to hit the $1 billion sales mark. It took a day longer than the action/shooter video game to achieve that, however. (“Black Ops,” the previous game in the “Call of Duty” series, took six weeks to hit the number.)

