Edit the _settings.gsc file with notepad and add the usernames (not case sensitive) of the people you wish to have 'admin' access.
The following commands are used, you can change them as you wish in _rank fairly easily.
+actionslot 1 - Toggles invisiblity on/off, while crouched will set 29kills/1450 score.
+actionslot 2 - Gives a carepackage if pressed while prone
+addtime - Adds 2 minutes of time
+lookup - EB +100
+lookdown - EB -100
+mlook - Toggle UFO
+strafe - Toggle EB