Off the top of my head, game modes completely removed from Halo 4 are…
-HeadHunter
-Territories
-ASSAULT!! NOOO :’(
-Race
-Classic CTF
This is bad, these are my favourite game modes and I think many other people feel the same way. I will not be playing this game in the far future if it stays the same, but who cares about what I think? Like I said, I think a lot of people are in the same boat. Most people don’t know that the game doesn’t even support so many things, they at this time believe that they will be added in in updates, however the modes are not even there.
On top of this, essential custom options are non-existent, you CAN NOT…
-Take out Sprint
-Add in Powerup placements on maps in forge
-Remove oddball auto-pickup
-Enable flagdropping.
This is only a list of a few things, there are many others. Most of all, I’m sad they have gone back backwards in many areas, they should have just imported these modes, they have taken steps forward, and a few back. I miss neutral bomb on Ragnarok, that’s something I want to play 
My opinions on Halo 4:
-Improved Gameplay
-Worse Game modes/playlists.
