You want to give them orders individually?
;reset bookmark
#reset
;list of enemy inside a named trigger, activated by enemy
;the number of enemy units in the list
;set a counter to zero
_enemylist = list triggername
_max = count _enemylist
_counter = 0
;loop bookmark
#loop
~1
;select a unit from enemylist using counter, which changes on every loop to the next unit
_unit = _enemylist select _counter
;you can give your commands to one individual unit here
;values are reseted when all the units in the array have gone through the loop
;counter is added with one, to select the next unit in array
?_counter == _max: goto "reset"
_counter = _counter +1
goto "loop"