Since face is set at char creation and does change after
that (besides for full face models/ avatars) it is actually
kept in another model.
"woman-parts_face.elu" has the faces held for the female
models, 15 to be exact as of the Phoenix II client, and
male will be in its respective model file.
Just to give you an idea of what you should be looking
for here is a screenshot and a blend file. It always amazed
me people didnt fiddle with faces more in development. Even
the MAIET made ones were very anime-istic in style which
was part of the hype in Gunz, why they were never used
is just a mystery.