If halo 5 comes out I would like that bungie will let the players if they want to be a Spartan or a ODST or marine or part of the covs as a hunter, jackal, Elite and brute. Sometimes I get bored of being a Spartan. I want to make a charter what He or She looks like is it going to be a Spartan ODST or marine. I think some people want to play as something different.
This idea has cropped up amongst the interwebs since Combat Evolved. There has been no official interest in pursuing the idea. However! With the magic of Halo: Custom Edition, perhaps a mod has been made or could be built to suit such needs.