Vg has halo 4 at
3.7millon fw
7.2 million by end of the year
I'd say assuming halo 5 has about a 90meta and launches smoothly it could do 3.5 million fw, and 6.5million by end of the year including digital for both. Those I feel like are optimistic numbers.
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.