UnitedAdmins has this thing called CD that they host. If a server has it, and you dont it will rename you to [NO C-D]YourName, and some servers wont even let you in if yo dont have it.
The good of it: Less cheating.
The bad of it: Most systems/cards/connections arent takeing it well and are lagging and glitching out. Is it work it.... not at all, but I look forward to the updates.