Guns, Grenades, Melee.............and vehicles :P

While I agree that 343 has bent over backwards for the community, but these are things that the game should have shipped with. A lot of the core crowd left and changes weren't enough to bring them back...Most people have long since sold their Halo 4 and have no idea about any of the changes made to the playlists.

A VISIBLE 1-50 system (That doesn't suck...This one does.)...No Armor Abilities, No Ordnance, No load outs, no bloom, No sprint, and BATTLE RIFLE as main weapon (Cannot stress the last one enough.)

Also: Better Maps. Frankly I don't give a rats ass if Halo 5 is nothing but Halo 1-3 map remakes (Gaurdian, Blood Gulch, Midship etc.). As long as they are fun and play well.

Something of importance to me personally:

Art style. A return to the Halo 3 Aesthetic would be wonderful in my opinion...Those MP Spartans STILL hold up. I personally would like us to be back to Spartan 2's again.

Despite all of this though I don't think the Halo MLG competitive scene will ever return to 2005-2010 levels of awesomeness....God I miss those days.