First-person shooter phenomenon Call of Duty: Black Ops is the best-selling PlayStation 3 game ever, Activision has claimed.
The gargantuan game company cited data from NPD, ChartTrack and GfK as it announced that the First Strike downloadable content had hit the PlayStation Network.
Activision failed, however, to reveal specific sales for the PS3 version of the game.
Black Ops beats PS3-exclusive simulation racer Gran Turismo 5 (6.37 million), Gran Turismo 5 Prologue (5.2 million), Konami's Metal Gear Solid 4: Guns of the Patriots (4.75 million), Infinity Ward's Call of Duty: Modern Warfare 2 and Naughty Dog's Uncharted 2: Among Thieves (over 3.8 million copies worldwide) in the illustrious list of PS3 best-sellers.
Black Ops is the fastest-selling videogame of all time across all formats.
The Treyarch created military shooter made entertainment history in November last year when it shattered theatrical box office, book and videogame sales records for five-day opening worldwide sell through in dollars, selling more than $650 million.
The PS3 console first went on sale in November 2006.