Thanks Baldo, this is the answer I was expecting
. I know for now that there isn't any solution for this and I will continue with "Set up area triggers and events to redirect teammates to predetermined positions thoughout the map.", which does work. Not the most beautifull looking way of doing it, but it is the most effective.
Now that you've mentioned it I'm wondering; what is the difference between Go to group (126) and Go to player (127)?
I've also tested this Autonomous behavior because I saw an old post from Dave Snow 2 days ago, before the barracks went down again. This should as he mentioned trigger the ability to give your teammates commands. So I've opend the editor, empty map, 3 AI Delta's and 1 area trigger. If player is in area trigger 1 then change AI ssn to Autonomous behavior. Exported and started the map, I step into Area trigger 1, and suddenly the 3 AI started running in a straight line perfectly toward the WEST of the map
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So yeah, as for Autonomous behavior, 'Foget about it...'