Face Creation - Potential like GTA/ESO/FO3/ME1

So the fabled - or should I say parabled? - Black Mesa Face Creation System. Could this potentially be modified for use for custom player character creation, like that seen in GTA5, the Bethesda Fallout and Elder Scrolls games, or the Mass Effect series?

Isn’t there already a mild system like that in place? It’s probably not gonna get on a much higher level, especially not as detailed as those titles, but it’s something.

Yeah, Multiplayer has it.
It doesn’t have, like, 12 noses and 8 hairstyles or anything, but it has everything the FCS for NPCs does, minus a few glasses submodels.

I just ask because a friend of mine had this idea for a Half-Life MMORPG, similar to ESO or STO, and I thought there was some real potential there.

Your friend’s not the first, there is none, Source is not the engine for that sort of game so the question’s sort of moot anyway.

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.