While a Regiment unit in your Crusade army is under the effects of the Move! Move! Move! Order, if that unit Advances, add 2 to that Advance roll.
In addition:
While you have a surplus in Lexmechanicus, you can select up to 3 Regiment units from your Crusade armyl until the end of the battle, the selected unit have the Infiltrators ability.
While you have a deficiency in Morale, units from your Crusade army cannot be Marked for Greatness and units from your Crusade