I set everything up so that when I lift off a barracks, a scarab will shoot from a location continuously moved on a marine to a location continuously moved on an observer using the generic command point/ patrol combo. The scarab does shoot, but it doesn't explode when in proximity of an unallied player's units. The computer that owns the reaver is not allied with this player, in fact I set all the forces to be unallied. Help?
ADDITION:
Actually I've just noticed that the scarab isn't shooting in the direction of my probe(where the generic command point is) Which probably tells me that the generic point isn't working for the scarab to patrol to, so it's not recognising to attack.