(often the Russian or Polish region-locked versions), the "best" way to get English language files working involves a mix of file replacement and registry editing. Method 1: Official Reinstallation (Easiest)
You can source clean, original English language files from: battlefield+hardline+english+language+files+best
If your version supports English, you can change it without external files: Open the EA App or Origin client. (often the Russian or Polish region-locked versions), the