I have the following problem when the maps switch:
Couldn't load "Textures/British Infantry_s_dds"
it's most likely you have skins for other mods installed to, install again and it'll work. If you look at the files it has nothing to do with uniforms only hats. It's most likely your OLD materials, make sure you move materials and textures AGAIN if it doesnt work verify game cache and do it again
Yah, I figured this to be the problem, because the santa hats wouldn't be on all the units, only some. Just meant to clarify, really.