ironside, What is the estab for that self propelled arty unit leading the charge?
Its not an Armored Artillery unit Dave, its 3 M21 Mortars mounted in Halftracks.
I have seen this behavior where the mortar platoons take point a few times since my bug report, but its not the norm.
It usually happens when the mortar platoon has to join the assault force in order to come within range of the objective.
You need to find a way of keeping them behind the Hub a discreet distance and change pace with the assaulting force, especially if the mortar platoon is wheeled and the assault formation is on foot.