I'm surprised there is no information on this as setting up your profile is one of the first things you do. After searching all the Offical locations and then the whole of the internet, I have been unable to find the information that I am looking for.
There are plenty of posts saying how to insert a custom face, but how do you make them?
The Default faces must be in the game somewhere, which PBO should be extracted to find them?
Is there any converting needed, and what program to use?