The first thing I noticed is a lack of any Full Game (MCC) option. I think this category should be added, as the MCC version is the most accessible one. Even more so since the Full Game Category is specified to only the original Vista Port.

As Dubhzo said in another post, check out haloruns.com, that is where most of Halo's speedruns are held. speedrun.com has more of the niche categories!

Hey Componet_Games, we added Halo mcc runs for all categories and also added tthe option to play co-op on every extentions