I have no problems with seeing where I could put my men in cover on that W2 screenshot. Besides, this has nothing to do with the camera perspective. If at all then it relates to chessboard style maps, which JA2 has, but W2 not.
By the way, as JA2 uses a 2.3D engine where every scenery object has a 3D box collision model, just because your men can stand behind something, doesn't mean they are in full cover.