text: a question about purpose built military vehicles, is there one specially made for knocking heavy down walls? there are many purpose built military vehicles for different things, like  i've seen one which looks like a tank but its not for combat but for bridging gaps instead for example. but is there on for knocking down the heaviest walls? yes,,it is called an/a cev meaning "combat engineering vehicle it is based on the old m-60 tank chassis, and has a turret with a 165mm main gun that is a demolition gun, designed to blast through heavy walls and such