Activision has passed along some more impressive Modern Warfare 2 numbers, cementing the fact that, yes, this game sold really, really well.

According to its internal estimated sales numbers, the title grossed approximately $550 million dollars in its first week, setting new five-day sell-through records.

First, let's take a look at the Xbox Live numbers (Note: Sony did not provide PSN numbers in Activision's release):
•More than 5.2 million multiplayer hours were logged playing Call of Duty: Modern Warfare 2 on the first day alone.
•More than 2.2 million unique gamers played Call of Duty: Modern Warfare 2 in one day on November 10th. A new one-day record for Xbox LIVE.
•More than 11 million achievements were unlocked on Call of Duty: Modern Warfare 2 on the first day.

Follow up:

Modern Warfare 2's $550 million first week sales also surpassed some of largest entertainment launches of all time:
•The largest reported five-day opening worldwide box office gross figures, held by Harry Potter and the Half-Blood Prince ($394 million)
•The largest reported five-day opening domestic box office gross figures, held by The Dark Knight ($203.8 million)
•The largest reported five-day worldwide video game sales record, previously held by Grand Theft Auto IV (6 million units, $500 million)
•The largest reported opening first-day domestic box office gross figures, held by The Dark Knight ($66.4 million)
•The largest reported first-day book sales in dollars, held by Harry Potter & The Deathly Hallows ($220 million)
•The largest reported first-day worldwide video game sales record, previously held by Grand Theft Auto IV (3.6 million units, $310 million)

Activision had estimated the title grossed $310 million worldwide in its first day alone. So it looks likely this title could surpass one billion after this holiday, which would be impressive for a video game. Courtesy of IGN