Unique textures for Grand Campaign Natives?

[Ftmch]

I was wondering, is it possible to give the grand campaign natives unique textures without editing any Db-files?

with most factions, you can just add the faction name to the texture file, for example:

euro_line_infantry_diffuse.dds

you change it to:

euro_line_infantry_france_diffuse.dds

and you can use it to make a unique texture for france. However, I'm not sure what to name the native files, or if it even works. I tried to make unique textures for the iroquois by renaming files like:

native_american_archers_diffuse.dds
to
native_american_archers_iroquois_diffuse.dds


Does anyone know what to name them? or if it even works?
Thanks in advance.



Also, note that this is the GRAND CAMPAIGN natives, and not the new natives that came with the patch.