The Direction of an Attack Arrow should be used as follows:
     • Use only where necessary because it restricts the maneuver of the
       subordinate unit.
     • When a unit is directed to seize successive objectives with its main attack along        a certain line, either one arrow extending through the objectives to the final        objective or a series of arrows connecting the objectives may be used.
     • The double arrowhead distinguishes the main attack for the command as
       a whole.