Installed 2 server side mods today.
Glass windows / walls etc ->
http://steamcommunity.com/sharedfiles/filedetails/?id=510590313
And a grinder that makes game bit more flexible >
http://steamcommunity.com/sharedfiles/filedetails/?id=534838287
Both mods should be auto downloaded when joining the server but incase they dont, the above link or searching for them in Steam, should do the trick.