The base.SC2Assets file seems to contain some of the sounds, the ones that aren't language-specific. enUS.SC2Assets contains other sound effects, in particular the campaign-specific unit sounds that are dependent on language (as you'd expect from the enUS at the beginning of the filename). For example, I can see all of Zeratul's sounds at enUS.SC2Assets/LocalizedData/Sounds/ProtossVO/CampaignUnits/Zeratul. Where's the equivalent folder for the non-campaign specific units?
Am I just missing something simple here? Where are the generic unit's sound effects?
None.