I got it out of the Campaign Italy book. They now have the Achnacarry Training 9 inch run through rough ground Page 107 of the new Italy Campaign book. The situation I faced was The Rangers ran on before the First Dice was pulled, and then as dice were actually pulled for the first wave some of the Ranger units were at or near the mid point of the battle field.
Thank you for the clarification, that and the ability to run in dence terrain make them a formable force.
Thank you need to get that book.