Hmmmm, I think I removed to much hex at the beginning... all I see is the mdl0 (which won't open), the palettes and textures. I removed all the hex from the start of the mrg file until the string bres, and then renamed it to brres. How did you open it?
You just have to remove everything before bres and then you're done just rename the file to nel.brres
and then use fortwaffles model porter to be able to look into the mdl0.
Or just when you have renamed it to .brres use szs modifier to extract each brres
