ROBSOMA- Unfortunately, every vehicle is drivable except the Shade turret (which isn't really much of a vehicle but thats the object list they put...
Kiwi- you are correct. In order to get the wall perfect, you have to have a very gentle tough when moving the blocks around. It's helpful to zoom...
Long time no talk to Insane.
Chan- while I have seen that method work, the one-way shield doors are iffy. I have been able to walk straight through one on many occasions. But...