Even with the files in place, the game needs to be told to use them. This requires a quick edit in the Windows Registry:
Inside the main Hardline folder, go to: \Data\Win32\Loc\
English language files are crucial for Battlefield: Hardline players who want to fully immerse themselves in the game's story and gameplay. Here are some reasons why:
If you have a non-English physical disc (common with EU "Regional" editions), the EA App may not offer the English switch. Here is how to manually inject the English files.