Here's a little script to use on them. They're already setup as characters, so they will follow waypoints until you get close, and then turn and chase you. If they get to you, you loose health.
;Artificial Intelligence Script
;Header
desc = Follow Waypoints
;Triggers
:waypointstate=0:animate=2,waypointstart
:waypointstate=3:animate=2,waypointnext
:waypointstate=4:animate=2,waypointrandom
:waypointstate=5:animate=2,waypointreverse
:state=0,plrdistwithin=200:rotatetoplr,movefore=1
:state=0,plrdistwithin=60:plrsubhealth=10
;End of Script
Brian.
