[Psyk0tik]

Originally Posted by ByDexter I'm sorry for my bad english authorized people will not be able to use any commands if they do not receive the steam group tag

This is what you need for the Steam group part: https://forums.alliedmods.net/showthread.php?p=2542856

Now all you need is to look for one of the chat tag plugins on this site instead of paying people to code a basic plugin for you.

For example, I use this one for L4D/L4D2: https://forums.alliedmods.net/showthread.php?p=1559567