[iRFNA]

I'm pretty sure that against the AI, you could have one small squad (probably want like 10 to make sure they don't break) on one side of the battlefield and close to the front, and your main army on the other side of the battlefield and slightly further away than your distraction squad. Place the distraction squad's commander at the very back of the battlefield with 5x hold. Give your distraction squad the order to guard commander.

If all goes right, the AI archers will all target the distraction squad, which will hopefully not have a morale break as it not only runs outside their range but lures them into slicey death at the hands of your midget army. If morale breaks, they pick a new squad to target, but otherwise they won't.