So the main Swap I use is Belf M - Undead F
Using Glitchys Model Editing Suite, i was able to get Orc m - Dwarf M without a problem, BUT if i do any... and i mean any other races, they have green hair, So i tried some of the posts on the fourms where people have already made model swaps and you just have to rename them.
ANY one i get, It makes my new undead female have blood elf male face textures.. and i mean ANY ... wtf