Unless I’m missing something (I did not read the Unturned comic series that ran from 2011-2012) then it is never explained why Major Len decided to dye his moustache and presumably his hair (which was only shown one time in the visual novel that released for the Sega Genesis)
This question has boggled my mind for almost three decades and I have looked for answers everywhere, I was hoping we could discuss and finally decide a canon reason for why he did that to himself?