Small update this time. I've partially sculpted a hood, added shoulder guards and also a cable from his respirator on the back to his chest however when I was sculpting the hood I accidentally touched it so I had to remove it. I'm going to replace it with a slightly larger tube. I still haven't decided how I want to base him. I think it will be a simple dirt/sand ground.
He's almost done. I need to finish the right side of the hood, add the tube and also sculpt straps to the bolts on his thigh.