@Freefall,@MlAlx: Yes, it is claptrap from Borderlands. MlAlx is completely right. It is a new addition to our ever-growing character list. The top controller is for the left, right, and center flaps & the tray in his lower abdomen area.
Know what it's like, have tried many times to get a good cliff face for my underground scene, really hard to get right. You seem to be right on track :) Looks like it could do with another subdivision.