Suppose that fighters patrol a certain locality, in which the enemy has a bomber and an antiaircraft gun. It is unclear what exactly these fighters attack first. This, in fact, is the question.
"Click on any unit, then use the arrow keys to move thru your units, then use the move command, and you will see a path leading back to the unit. extremely tedious, but there appears to be no easy way". This is the best advice. Yes, proven.