Background is that riot has renamed most language-specific files inside wads, like VO audio files, from containing their respective language's identifier (like de_de) to instead contain en_us. That means that all those files from different wads have the same name but contain different content. To avoid those conflicts while extracting language-specific files are not exported to a new folder for that language in game/.
This is mostly untested, but should work I think.
Background is that riot has renamed most language-specific files inside wads, like VO audio files, from containing their respective language's identifier (like
de_de) to instead containen_us. That means that all those files from different wads have the same name but contain different content. To avoid those conflicts while extracting language-specific files are not exported to a new folder for that language ingame/.