I just added this to the 'Cover Story' thread in the Tactical Discussion forum, glad to do my bit to help keep the Blitz Tac Forum the best in the CM community..;)
EMPLACEMENTS
They're only found in Cmak and have to be placed by the scenario designer when he's creating the scen, they can't be bought in QB's.
As cover goes, they rate 30% which is about 'average', but they give NO cover if a firing enemy is appreciably higher.
A foxhole in an emplacement gives no extra cover.
Tanks get no cover in Emps, not even hulldown.
Only
full-tracked vehs and foot units can cross or enter them, but guns can start the game in there.