For me comparing this to the trilogy it's better in some areas(mainly gameplay) and worse in some areas. The only reason imho that it's worse is the characters arnt nearly as compelling. I'd give it a 90 so far(20 hrs in)
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.