[Aerotactics]

I have an Admin FS with player variables such as their admin, vip, and beta ranks and saves them into a user file. I need to check in the GM if the player is a beta tester by checking the same user file, then perform the command, because the GM has variables that cant be read from the Admin FS. I've tried using Y_Hooks without success. I want to know the simplest way to perform this operation. Thanks in advance!