I have been searching through AI scripts for a while now, but almost all of them have major difficulties when it comes to enclosed spaces and running into walls. This has got me thinking, is there a way for the character to create a “path” so that an enemy would simply follow the exact route that the character took? If anyone has heard of something like this or is willing to take a stab at it, please give me a response. 
Sounds like you dont have a problme with AI but a problem with pathfinding =)
~Popper
How about looking into ‘pathfinding’ and possibly ‘waypoints’,