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Louis German Voice | Louis Deutsche Stimmen

If it crashes, try running snd_rebuildsoundcache and restart game when loading bar is full.

Changes Louis' voices to the German dub. There are still some English sounds, though.
You normally get this by right clicking the game > Properties > Language > Deustch, then the game updates and you can find the files in the game's folder > left4dead2_dlc3_GERMAN

No soundcache, but it should work immediately without GCFScape stuff.
Tell me if there's fax machine/screeching sounds because that means I need to learn how to make sound cache.