The only thing usable for software sales is the attach ratio bit. By my reckoning the highest attach ratio at launch for a first party game on X11 is forza 5. 315k on 1.1 million consoles. That's a 28.5 attach ratio. A 28.5% attach ratio on 14.6 million would put halo 5 at 4.15 million copies. This is all going off vg charts but this seams a little high to me. My guess was 3 million including digital week 1.
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.