set junkyard dog

I'm making a map for Warcraft 3 that needs all of the units from a unit group to fly around to random places. I was wondering if there was an AI script like set junkyard dog (roam around)(from starcraft) so I can make the units fly around at random. I've tried using

--Every .5 seconds

--Unit - Order (Random Unit from (units of type flying sheep)) Move to (random point in (Playable Map Area))

but that leaves some of the sheep sitting still. Using the

--For Each Integer A (from 1 to 150), do Order (Random Unit from (units of type flying sheep)) Move to (random point in (Playable Map Area))

gives the map massive slowdown.
Can anyone help?

You can set units to wander around in WE.
If you do not want to use that, I'd suggest you put the units from the group in a unit array instead. Then you can easily go through all the units and order each to a random point. Then you won't have to do it that often and thus the slowdown is reduced.

if you want to do it with triggers, i can't help you, but if you want to do it the lazy way you can always just give it the "wander" ability, like most of the animals have already.