thanks danotronXX

actually it was uv mapped with roadkill.

https://www.pullin-shapes.co.uk/page8.htm

also, remember the base model looks a lot different to this, so it's easier to do.

as far as i know, zbrush only does stacked uvs which is no good for painting in photoshop. i did use it for painting the seams, tho i don't know if i did it the best way.