I like using these behind buildings... for some strange reason buildings seem to attract HE rounds.... not every building contains a sniper and MG42 crew.
So when the house goes up in bits and the dust clouds clear your men are tucked safely in their burrows awaiting the advancing infantry.
Its also a good idea sometimes to put trenches where the enemy can see them but leave them empty.... a great way to make your opponent that extra bit cautious and even may force his hand into expending some valuable HE rounds... aint that right Der Kuenstler... :whis:
Bootie