Quoting from the Discord:

Hey all. I'm going to expand the server settings for one of the next updates. If server owners, or anyone for that matter, would kindly list me the CVars they currently use. E.g. the friendly fire on drill camp, I can then make it accessible through the UI to everyone. Additionally, suggestions for server settings you would like to be able to change @me with it here. Try and keep the suggestions reasonable and don't include incomplete features like horses or snow in them.
Server owners and operators; please oblige with your current CVars and your desires for new ones.