[Fallout 4 Automatic face]

I have an idea for a mod. We get a few photo of a real person face, extract facial features using Constrained Local Model (CLM) or something else?, make a 3D model of a person face and then we will generate a save file with this facial features applyed to a Fallout 4 character. how cool is that? not a single minute will be spend in a character editor!

I'll try to do it when I will have free time, but I appreciate any advice on this matter, however a few details are not particularly clear to me:

How do Fallout 4 store facial features?

Any implementation of face model generation based on a photos or a video stream?

General structure of a Fallout 4 save files?

Or anything else that would be helpful to know?

I appreciate any help.