Here is the things I want.
1: I want forge to be like Far Cry 2's map editor, or at least that detailed.
2: Bring back duel wielding or at least make the weaker guns less weak and worth using.
3: I want a great ranking system. Something thats addictive and that makes you don't want to stop playing till you rank up.
4: Bring zombies in the game again and make it even better the previous halo games
5: Bring back classic maps. Such as Beaver Creek, Blood Gulch, Sidewinder, warlock etc...
6: I would like to see a teamwork assassinations and assassination assist medal as well. Example: My teammate goes behind a guy and goes to assassinate, but instead he holds him in place by grabbing him, while the other teammate pulls out a knife and stabs him in the chest or face etc….
7:I would also like to see a counter to assassinations. Example: When the assassination is in progress, it will tell you what button to push to counter it. But it should be random. Meaning one time it will say press (A) but the next time, it may tell you to press (Y) or ( etc…. Also, you should only have 2 to 3 seconds to react otherwise it will be too easy to counter.
8: I would like the outdoor maps to be more dynamic. Example: You enter the game and the map is clear sunny skies. The game ends and you go start a new one. Everybody votes for the same map you just got done playing. But this time instead of the map being clear sunny skies, its cloudy and raining or it may be night time etc...