Call of Duty: Black Ops sold 5.6 million copies in the US and UK combined - in one day. That's more than Modern Warfare 2's opening record of 4.7 million copies.
Those sales generated $360 million for Activision. Modern Warfare 2 only made $310 million, scoff.
"There has never been another entertainment franchise that has set opening day records for two consecutive years and we are on track to outperform last year's five-day global sales record of $550 million," commented Activision's Bobby Kotick.
"The game's success underscores the pop culture appeal of the brand. Call of Duty: Black Ops is the finest game that Treyarch has ever made and raises the bar for online gameplay by delivering the deepest and most intense Call of Duty experience yet.
"The Call of Duty franchise has over 25 million players around the world that are engaged in billions of hours of online gameplay, and we are committed to supporting them with new content and features on a more frequent and regular basis."
Not only has Eurogamer reviewed Call of Duty: Black Ops, we've also compared the two console games to find out which is best.