Run-Line call MapVoteULv2NS.BDBMapVote
Server.INI (or other)
ServerPackages=MapVoteULv2NS
start server - admin login - make sure about bReloadMapsOnRequestOnly=True 
- I'm gonna explain this, press "reloadmaps" button, 
patience in first second until sorting percent starts to broadcast On-Screen. 
When it's done see admin panel and you might hit "Save" button.

This stuff won't save any MAP-LIST in client because if is a public mutator, 
many servers might have different setup and then maps are different when they use the same things, 
and then will create an INI soup with maps in client just because of... nothing too wise.