One of the main problems I had with Reach (which is still a fantastic game IMO) was that custom gametypes kinda took a hit compared to Halo 3. There were some very basic options that were left out that meant gametypes we’d created in Halo 3 were now impossible in Reach.
For instance, I had a gametype called “Drop the Hammer” that was basically a reverse game of Juggernaut in the middle of a Slayer game, where being the Juggernaut effectively stopped you from being able to score any points, but made you fast and invincible with the grav hammer as your weapon. If you had the hammer, you effectively wanted to “drop” it by killing someone else, thus making them the new Juggernaut on respawn so you can be free to continue killing non-juggernaut opponants.
This was one of my favourite gametypes, but when Reach came out, I was disappointed to learn you couldn’t choose to make Juggernaut work that way anymore. A real backward step. Lots of other cool options were gone too.
Will 343 be tweaking custom game options to add more variety and include everything that made the other Halo games fun? Currently for me at least there’s no real incentive to bother with custom games.