The Krill Crawler in a medium sized anti-tank/mech unit. It has two cannons that fire energy blasts that are capable of punching 20" holes in practically any armor plating imaginable. These units are said to be DA widows that have been absorbed by a Krill Marauder but this hasn't been proven. They have larger hind legs to counter the recoil that the cannons generate. The "head" can rotate 360 degrees.