I picked up a copy of Price of Glory, the WW1 version of DH. Although similar to DH, the POG rules give a much clearer explanation of the use of cover and LOS, including a new terrain type called Dips and Folds which represents broken/undulating ground.
Most interesting is that POG does not apply the 10 and 1 rule to firing, only morale. If the firer's ACC is reduced to 0 they can hit on a 1 followed by a 3 or less. Below 0 there is no chance to hit. This would certainly reduce the bloodbath in DH.
Pat