You know what HAS to be put in Halo 4? CUSTOM GAMES MATCHMAKing.

Games Other Halo
1

Some nights I get bored and want to play custom games with my friends. But custom games is really fun only with 7+ people. So 343 should have Custom Games matchmaking. Under lets say a community section two playlists. Custom Game Host, Custom Games Join. Under Custom Game Host, you can set the game modes, private slots team, like your own mini server a la Halo CE PC. Under Custom Game Join, you can join servers that are open. There would be a list like HCE PC for you to join.

I know my idea doesnt sound cool at all, but is Custom Games matchmaking something you guys want?

2

Yes, it’s a good idea. But has already been mentioned dozens of times. People seem to want to join any custom game they would like based on number of players, game type, and map.