The server browser is bugged.
Bug: You cannot filter the server list by any means. You should be able to filter it by game mode, map, public/private but it don't work.
Suggested fix:
1. just fix it
2. Replace the currently unused "Test Server" menu for all unlocked privates. Call it "Public Servers" or something.
Menu Suggestion:
- Official Servers: As it in now
- Public Servers: Public privates
- Private Servers: Locked privates
Unlocked privates don't belong with official or with the privates since they are nither private or official.