Ok, the first gears came out in late 2006, since then the 360 user base has risen by a lot, If you take in to account that a lot of newer 360 owners may have bought gears 1 second hand then i expect gears 2 to have a much higher sales rate, If all the people who bought gears 1 new buy gears 2 new, And all the new 360 owners who bought gears 1 second hand buy gears 2 new then expect massive sales........... I think it can topple 6 million sales by the end of the year alone easily