Maybe the reason the scorpion isn't scratchy is that I've never skinned it, that's a model render you're seeing :E
EggWhites did my M4A1 on Valve's default animations, except the textures are different. You could do some simple VTF swaps though.
He's talking about the gloves in the animation screenshots that can be found at the links provided :) The gloves in those screenshots are my friend's who made the world models.