Call of Duty 4 reaches 10 million players on Xbox 360

Call of Duty 4 has reached a massive milestone: ten (10!) million unique users have played the game on Xbox 360 alone. Infinity War revealed the news, alongside some other interesting statistics:
71.1%, or 7,111,508 people have completed F.N.G.
68.8%, or 6,886,509 people have completed Cargo Ship.
46.5%, or 5,654,643 people have beaten the game on any difficulty.
2.8%, or 283,632 people have completed Airplane on Veteran difficulty.
According to IAMfourzerotwo.com, PSN numbers indicate somewhere around 4,3 million unique players, combined with the PC sales as well, CoD 4 has sold 15 million copies to date. Impressive!