Still very good, will probably break a million first week. I really didn't expect that at all
We really don’t know the sales/game pass split. For all I know it could be anywhere from 200-800k users on game pass. I doubt this game breaks 1 million sales in a week unless pc Is really taking off.
Halo MCC will sell 5+ million copies(including digital)
halo 5 will sell 10 million copies(including digital)
x1 will pass ps4 in USA, and UK.