Halo Cafeteria

This was a map that I used to test info_node placement and enemy AI. I was wondering if anyone would be interested in polishing up the AI. I've read plenty of those info_node placement tutorials and tips. And what I would like is the best set-up for AI that doesn't involve coding (because the length of the map I'm making isn't worth putting much time into coding unless it is as easy as knowing how to do loops in C++). If anyone could give some personal tips or tricks they used to implement the best use of AI in maps, could you help me a little on that. I want it to be a Halo form of AI.