In the terrain, trees and bushes disappear and reappear with zooming, in other words, they block view when they should not even be there.
If you zoom in at some point they disappear, then show up again at some point. I can also shoot (over the top) trees and bushes and the bullets hit something i see the hit sprites (flashes), same thing when shooting at ground vehicles the bushes dont appear but the rounds explode hitting something before reaching target. happens on most if not all maps too.
I forgot this one, while in a gv was driving across a ack pad the ack was down and it stopped me like it was up, had drive around it, and same thing with some invisable trees or bushes there was nothing there but it stopped me and had to back up and go way around what ever was there in the middle of bare area.