In all, the game sold in excess of 7 million units, according to data compiled from the NPD Group, Chart Track, and the GFK Group. Incredibly, that figure represents less than two whole months of sales, as the game deployed to stores in early November.
Of the overall figure, North American sales of the Xbox 360 version accounted for 3.04 million. The PC version, meanwhile, only sold 383,000 units at North American retailers, though that number does not include sales made through digital distribution platforms such as Steam.
Still, it's obvious that Infinity Ward is upset with the sales performance of the PC version, having already expressed amazement at the unexpectedly high level of piracy.
"This ground-breaking game and franchise continue to establish new standards by which all other action games will be judged," said Activision senior VP Will Kassoy. "Consumer and critics agree that Call of Duty 4: Modern Warfare is one of the best games ever created and further establishes Call of Duty as one of the premier brands in the industry."