Call of Duty : Modern Warfare 3 by Sledgehammer Games beat the product sales record which was held by Avatar .
Forbes reporter Bruce Rogers wrote that Sledgehammer Games 's first title , Call of Duty : Modern Warfare 3 , became the fastest selling entertainment product of all time ( only recently pushed back to second fastest by Rockstar Games ' Grand Theft Auto V with $ 800 million within 24 hours ) , beating the record held by James Cameron ’ s film Avatar. ``