A simple RCON / Admin tool would be nice... nothing fancy just a players list + the option to kick people would be nice!
Situation one:
Nice and pubbing around on own server.. Hacker appears -> no way of properly kick him (because vote kick is dependable on other players)
Situation two:
training on own server.. server full .. no way to make room for own clan-mates
Paying monthly fees for a server where you don't have any tools for.. sounds not right