I have added a short tutorial topic on adding an event to replicate a unit "breaking and fleeing" using the Faction AI scripts in the ATF Engine.
http://www.prosimco.com/uploads
This tutorial was done using the Developer Version of the ATF Scenario Builder, as well as a later Version of the engine, with a scenario from the soon-to-be-released "The Falklands War: 1982", but the steps are essentially the same for the release Version of the Scenario Builder, with ANY scenario.
Enjoy
P.S. KBluck. Just kidding