I've just accepted the fact that 343 is never going back to core of halo and just accepted this game for what it is. Once you come to that realization, the game is pretty fun
I simply don't understand how we got so far off course. I suspect the change started when they began to focus more on multiplayer and not campaign.
Not even suspect - I know because Halo 2 had that dumb Covenant campaign mode.
It seems to me that Halo CE was the best because every weapon you used in multiplayer served a major, MAJOR, purpose during campaign. The game just "made sense."
Edit: all of the capabilities of the chief played an integral role in moving the story along. The radar/ shield is because of cortana. The strength is because he's a spartan. The shotgun is introduced to deal with the flood. Etc….