Changing the language in Silent Hunter 5: Battle of the Atlantic can be tricky because
Documents/Silent Hunter 5/data/cfg/Main.cfg with Notepad.[Language].[Language]
Language=de-DE
englishgermanfrenchspanishitalian, you typically need to adjust settings through the platform you used for installation (Steam or Ubisoft Connect) or manually swap audio files if you want specific German crew voices. Steam Version Settings silent hunter 5 change language