16 million on 360?
WHAT A JOKE!!!!
Even if there was no other Call of Duty/Modern Warfare title coming out for the rest of the generation, this game wouldn't do more than 13 million.
Yearly sequels kill the previous one's. This game will die at 10~11 million. Same Halo3 numbers in the best shot.
Don't be blinded by xmas sales, otherwise you can go on with a thread asking if NSMBWii can achieve 40 million...