I was so excited when I initially saw the announcement after almost no word since before launch, but the next day I noticed the wording that actually says players will be a able to start a custom game that will be run on 343 servers, which is massively different from actually having community-hosted dedicated servers. If this is the case, then it'll unfortunately leave these games relegated almost solely to the "Let's play Griffball!" or "Let's play with a mod!" category, rather than what most players think of, which is the tool from which a game's community grows. While being able to play on a non-P2P connection is of course a good thing, this setup doesn't allow for a match to continue without the original host, meaning that players will just have to hope that someone else decided to host the match they wanted when they get on. I'm sure many of us here have been part of various game-communities that include the real community-hosted dedicated server feature and thus understand what the difference here means. Unlike say, in Halo CE on PC, where maps like Extinction, Coldsnap, Snow Grove, and more became just as featured as classics like Blood Gulch and Coldsnap, any custom content that MCC develops through mods will still be relegated to the "Let's get two or three friends together and fly Pelicans!" category, being almost more of a gimmick than the foundational building-blocks that one might expect from games that allow for community-hosted dedicated servers. On paper, it just looks like a tiny wording difference, but it really is a case of being so close but worlds away.
We're so close to the feature that'll allow the MCC to reach the potential we all hoped for since first announcement and after waiting this long with the promise of its inclusion, it's definitely pretty disheartening to see what we're currently actually getting, but hopefully as long as we keep making sure to voice these concerns, 343 will take notice. We know there are peeps from the original CE PC community working there, so they definitely understand what the MCC is missing, lacking such a feature and hopefully will lobby for it's inclusion as well.