Hi pros & bros! 
In one post I read that a developer said: "We use an other plugin to verify that an admin is the real admin, so we don't have the problem with double admin guid." But I have a real problem with admins verifying. Because of fake cod4 serials we have many same GUID, so when I set group a player to admins or ..., when he/she left the game, sometimes a default player joined the game and became admin! I checked GUIDs and saw that they have same guid. How I can resolve it? For Example is this possible that admins addition to guid also be identified by their names? and kickadminname is required!
Thanks for your support 