Activision has revealed that Call of Duty: Modern Warfare 2 sold 4.7 million copies in the US and UK in one day shattering all previous records.

Everybody knew the release of Call of Duty: Modern Warfare 2 was going to be huge, but I don't think anybody expected the numbers it was able to pull in. Activision released a press release that states the game sold 4.7 million copies in the US and UK alone in one day. This shatters the previous record holder GTA 4. Analyst Ben Schachter is predicting that when all is said and done, Modern Warfare 2 will have pulled in over 7 million copies worldwide on the first day. These are incredible numbers and no one has ever come close to reaching this level in any entertainment medium.

Modern Warfare 2's record breaking release also helped Microsoft reach a milestone. Major Nelson announced on his Twitter feed that Xbox LIVE had broken a record on most simultaneous users. He tweeted that they had 2 million users were logged into Xbox LIVE at one time. I don't think anybody doubts that the MW2's release had everything to do with this.