I know how to do that! Im always making that just to see the units killing each other. Just a map to kill crap lol.
First Trigger:
Events:
Periodic Time Event
Conditions:
Whatever! lol! i usually put Region 010 (whatever)contains Unit, so that they can stop/start fightning (a controlled fight)
Actions:
Create Unit for Player at Region001 facing Point/Angle
(you should make this one many times, to different players/regions of course)
Second Trigger:
Events:
A Unit enters Region001/Region002
Conditions:
Whatever
Actions:
Order [Entering Unit] to Attack-Move to Region002/001
Hope this works. If you are using WEU(WorldEditorUnlimited) the name is Rect, not Region, the Region has different metods of use in WEU.
If this does not work, try "Order [Entering Unit] to Attack-Ground" instead of "Order [Entering Unit] to Attack-Move"
Good Luck
-Rui