When you place an enemy...that will be his spawn point.
If you press F to follow...they will follow you...
(like everyone knows)
If you press H...while they are following you...
That will be their new "spawn" point...
H = Home...they will stand still if you press this.
So G will be the attack behaviour...
Just press F...And when near enemies..
(they will attack them once seen, or at least they do this on my pc)
You can press G...this will make them aggresive...
so they attack everything thats a enemy.
But i never had this "bug"....they always attacked enemies
when i pressed G.