- Cleo Mods a few question -

Hi guys. :)
My server 30-40 players connected especially Russians some cleo mods with my server negatively affect. Is there an alternative(method) solution :confused:
Chiefly used:
1- Fake Nick
They're changing the names of the players.
2- Fake Spec
They're follow up camera with players.
3- Fake Connect
They're connected and after a while disconnected but that person remain on the server.
What are your thoughts on this issue, How can it be prevented ?