i made a script for the zizombie where instead of lumbering around it runs at you, you just change the animation number in the states... hang on, i'll find it and upload it for you...
here ya go... he'll follow waypoints if there are any but if there aren't he'll just chase you. you might want to increase his speed though:
desc = Zizaco`s Zombie, Follow and Beat!
;Triggers
:waypointstate=0:animate=5,waypointstart,state=0
:waypointstate=3:animate=5,waypointnext,state=0
:waypointstate=4:animate=5,waypointrandom,state=0
:waypointstate=5:animate=5,waypointstop,state=0
:waypointstate=999:animate=5,waypointstop,state=0
:state=0,plrdistwithin=700:settarget,state=0
:state=0,plrdistwithin=3000:state=1
:state=1,plrdistfurther=40:rotatetoplr,movefore=2,animate=5
:state=1,plrdistfurther=3000:animate=1,state=0
:state=1,plrdistwithin=40,rateoffire:rotatetoplr,animate=92,plraddhealth=-20