Halo On Xbox One is God-Like Homies

[JustBeingReal]

I think 5 million max lifetime is far more likely, unless you think the entire Halo fan-base will buy the MCC, IMO that's highly unlikely, because the vast majority of those gamers will have Halo 1-2 on the Original Xbox One, or 1, 3 and 4 on the 360 already.