Skyrim SE to FO4 dds

[NekoNeko76]

Hellos, out of curiousity I  attempted to add Skyrim face dds from a Highpoly head (don't know if that matters) on to an FO4 HiPoly head. Texture shows but is off mainly on the z axis, sits lower.  I also don't think face tints work ? As a newbie, my question is: does that have to do with U.V. mapping? If so, I have blender so it would just give me something else to learn how to do. Is there an easier way to convert faces? I want to try and see if I can convert a newer version( face mesh and textures) of an follower mod from SSE to FO4. Google mostly pops up FO4 to SSE conversions. Currently trying to improve (more like I have been rebuilding it from scratch) an existent 2B follower mod that doesn't work correctly that who knows who actually made that one.

 

I have already converted outfit models from Deviant and SSE but now faces is new territory and doesn't look as easy.  Any guidance will be most appreciated.