The Shore Batteries, Square Office Buildings at towns and strats need to be fix when down. Once down, a vehicle can drive into them. Once up, it is very difficult for the enemy to see your icon and you can have a clear view to shoot out of it. Difficult to see the icon, not impossible. No gun fire from GV's or aircraft is able to cause damage to the GV inside. Solution to this problem until it is fixed by HTC, bomb the GV out. Dropping a bomb or having it shelled by a Shore Battery Gun or HE rounds from a CV does work, that is if the person bombing can hit their target. I've heard this is a similar problem with Ammo Bunkers and Radars. So, problem discussed and temporary solution offered to all until glitch is fixed.