Half-Face is going to argue to Radush and Dakgu that at least some of the wargs should get out of the castle and the encirclement while they can, so they can harry the enemy's rear while they try to storm the fort. Your sally can be a diversion to give the main warg force some breathing room and get out of the [s]bunny's[/s] human's tightening encirclement? Just a thought.