Here's how he stores inside the shell. There's even a little slot for his gun

All in all this is what I ended up with. Cost a little over 300 dollars total.

Look at that face sculpt. The tan one definitely looks better since green's details get lost in his dark color.

The tanks also have this weird peg not mentioned in the instructions, and the gun is spring loaded (but has no hole to shoot a missile)

The white one ("Barbara") was the one I wanted the most but I got all 4