Everything: 30th Crimson Hiss
I really liked the design of the 30th Cobra Hiss, and when I had an opportunity to pick up several on clearance, I siezed it! My goal was to make tanks for different environments including desert, arctic and jungle. I have not gotten around to making the desert version yet, but its on my list of things to do.
I made two arctic versions and two jungle versions. One of the two jungle versions pictured here was donated to a auction for charity, so I have one left in my collection.