Activision have announced that Call of Duty: Modern Warfare 3 has become the biggest entertainment launch ever with an estimated sell-through of more than $400 million and more than 6.5 million units in North America and the United Kingdom alone in the first 24 hours of its release

The game breaks the record set by its predecessor, Call of Duty: Black Ops which had an estimated day-one sell-through of $360 million.

As well as this, Microsoft revealed that after just two days, the number of gamers playing simultaneously on Xbox Live set a new peak concurrency record.

"We believe the launch of Call of Duty: Modern Warfare 3 is the biggest entertainment launch of all time in any medium, and we achieved this record with sales from only two territories," said Bobby Kotick, CEO, Activision Blizzard, Inc. "Other than Call of Duty, there has never been another entertainment franchise that has set opening day records three years in a row. Life-to-date sales for the Call of Duty franchise exceed worldwide theatrical box office for "Star Wars" and "Lord of the Rings," two of the most successful entertainment franchises of all time."

Eric Hirshberg, CEO, Activision Publishing added, "Call of Duty is more than a game. It's become a major part of the pop cultural landscape. It is a game that core enthusiasts love, but that also consistently draws new people into the medium. It is the most intense, adrenaline pumping entertainment experience anywhere. I would like to thank our incredible teams at Infinity Ward and Sledgehammer Games for making a brilliant game. But most of all, I would like to thank our millions of passionate fans worldwide. We made this game for you."