I've noticed that in 1.11 when my tanks and MGSs fire HEAT at soft targets in trenches the rounds always fall short and never make it to the trench. It's as if they are trying to fire through the ground to the spot where the unit is, but the ground stops the round. For example, in the scenario being discussed, while driving up the road, my tanks and MGSs will expend all HEAT rounds without ever causing a casualty. I have to call in mortars to take out the HMGs in the trenches.