Modding Question (Star Wars: Battlefront 2 (2017))

In general, I have a mod for Russian voice acting and music for heroes. Today I also put a mod on darth Nihilus and Revan, who have their own voice acting and music.
The question is. How to extract files of certain heroes from mods for voice acting and music to make these work. Of course you can google it, but maybe everything is simpler there and someone will tell you in a nutshell?)