The deification of Chief is ultimately what's gonna kill Halo's SP campaign interest.
Bungie's Chief was a cybernetic experiment with a personality as interesting as a brick. The fact that most of us loved Halo 4 story is because we finally started to understand the man underneath the green suit and feel a crack on that iron curtain.
We finally saw Chief fighting someone in Halo 4 who was up to snuff and not comical like some Covenant bosses had been before. It is important for the sake of storytelling and character development for Chief to be a human and identifiable.
Team Osiris should've been an antihero team with a leader that is a Spartan Headhunter. They should've placed Chief's morality in question and make the player question him as this holier than thou type of figure.
I don't want Chief to keep his superman complex, while Halo could've been richer with multiple characters with tales to be told in different perspectives.