The tank-junkers are about 7ft tall / 9-10ft long, carbon fiber and boron mesh armor plating. Power armor weapons would be needed to punch through the frames, but personnel weapons would be okay against the eyes, joints, and exhausts. Speaking of eyes, they mostly only have forward-facing sensors, so you can sneak around them. They are slow and stupid, but can turn on a dime and climb like nobodies business.
Just informing some decisions. ;I