After reading this http://www.facepunch.com/threads/1081755, I thought it would be cool if someone made a Rattmann model for gmod.
All I ask is that you headhack the male_09 head (With a facemap kinda like the one for the rebels, except messier and more pale) onto a reskinned scientist model that’s in this pack,
http://www.garrysmod.org/downloads/?a=view&id=88822 (Or you could just use any other model you think works best, I won’t mind)
…and possibly add some geometric hair that’s messy.
Also, here’s a couple of references: