So far, in order to make NPCs speak, I looked up the sound file under sounds/vo/..... and had an ambient_generic play that, with the NPC in question as source entity. But I'm pretty sure that's not the way to go, seeing as it doesn't account for localised versions of the games, etc etc. I tried googling it but couldn't find out what the proper way is, except for stuff referencing Faceposer (which I hope isn't necessary because that stuff, afaik, only works on a mod scale but not a map scale).
Sooooo..... what is it I'm looking for?