Whit is the best way to setup 50+ perms

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I am creating a team speak server to go with a ArmA 3 server which will have around 100 people on the TS. I just wanted to know if there was a good way to setup this. There will be admin group and individual clan group within the server. I know this is quite a broad question. This is somewhat... Whit is the best way to setup 50+ perms