[TF2] Voodoo-Cursed Souls don't have proper rimlights
TF2 has rimlights, which helps to identify players even in dark spots. Voodo-Cursed Souls disable them in the model of the user.

i'm gonna pitch in and shine a light on what the actual issue is: the [classname]_[team]_zombie.vmt files, they have rim lighting parameters that are not consistent with the class' normal vmt files.
for example, this is in heavy_red.vmt "$rimlight" "1" "$rimlightexponent" "4" "$rimlightboost" "2" and this is in heavy_red_zombie "$rimlight" "1" "$rimlightexponent" "15" "$rimlightboost" ".25" (comments from the vmt for what these 3 parameters do was removed) rimlighting isn't disabled, but unless you're really looking for it, it might as well be disabled with those parameters. (unrelated but they also have phongboost set to 0, removing the shine effect on their models when in lit areas.)
update: made a vpk that makes the phong and rimlighting parameters on the zombie vmts consistent between the human vmts ConsistentZombieVMTs.zip
Workshop entry: https://steamcommunity.com/sharedfiles/filedetails/?id=2982591543