>>360183052
Oh yeah, I should do that at one point. I started playing it recently and wanna get a driller outfit since I really enjoy that class. My money is on the fact they probably used a tool from the unity asset store like some texture packing tool that changes how they're formatted for ??? reasons. 
>>360202156
The general idea applies. You could do the headswap method, which also has good videos, including one made by someone from /vrg/ itself.