With help from Psychotron-3000, I was able to create a new Crab Tank. I'm still working out issues with the schemes he proposed (a dark military theme is just my style; I'm not a fan of bright, flashy colors :P). However, when he modded my crab tank the first few times, the shading of some of his mods were very interesting to me, and I used what he had sent me to modify the tank for a more robotic appearance.

This shows several portions of the crab tank's animations working together. The first animation you see is its walking animation, then its idle stance, then its side-jump, then crouching.