Very interesting thank you! Do you think these methods would have been used in the fast moving front lines of the Battle of the Bulge scenarios? I assume they would have been given lower priority for the congested roads than the combat units and the artillery pieces themselves. By the time they had set up the battle would have moved on I expect. The wooded terrain with, rolling hills, deep valleys and the extreme weather conditions would have made it very difficult to locate targets I would imagine. I expect they were of much more use in the Desert, and for defensive positions.