IMO the only thing they really need to fix is simply add a "Custom" option to the server filter. Right now you can only search by "on/off" for a thousand different server variables.
Doesn't help that custom and hardcore have essentially been dead on PC for months.
What the point in having a billion options for custom games when people can't actually find them unless they search for SPECIFICALLY the exact options they want, or a combination of options...
I like custom games, I like hardcore, I'm sad to see that they don't really exist anymore. When you click "custom games" you get 5 or 6 custom playlists that have been curated by the devs, but they're always empty, I only get spit into an empty server. If I could see a custom game in the server browser, It would be a lot easier to fill them up IMO.