you have to store handles to the attached units...
like self.AttachedUnits = { unit1 = attachedunit1, unit2 = attachedunit2 }
you then use that to get the handle to the unit like
IssueAttack({self.AttachedUnits.unit1}, target)
self in your senario is the unit that all the others are attached to.. IE the base unit.
you dont want that unit you want the attached units...
