[LoloMo]

Or just add another command "Fire at Largest Squad". The archers preferentially target the most numerous squad.

Also, "Fire Middle", "Fire Rear", in addition to the "Fire Closest". The enemy half of the battlefield can be segmented into 9 sections. Archers would preferentially target an enemy squad in a section directly opposite its own. So an archer located in a lower section with "Fire Middle" orders would preferentially target an enemy squad in the Middle, Lower section of the enemy's side of the battlefield.

Probably easier to code too.