Americas: Reach launch > CoD: Black Ops 360+PS3?

[Millenium]

Answer: I think launch day sales of Halo: Reach will be 5-15% greater than launch day sales of Call of Duty: Black Ops (Xbox 360 & Playstation 3 combined).

Answer: Yes, Modern Warfare 2 has passed Halo 3 in lifetimes sales, it currentlly stands as the best sold Xbox 360 game to date. (But for how long. ;) )