You may need to download the English audio packs ( .pak files) separately and place them in the zone folder.
Modders have created workarounds. One example is the available on GitHub. This mod forces the game to read Japanese localization strings even if you have the English version of the game.
Complete Guide to Downloading and Installing Call of Duty: Black Ops 3 Language Switchers black ops 3 language switcher download
There are two legitimate ways to change Black Ops 3 's language—through the Steam launcher or from within the game's menu. It's as straightforward as it gets.
This is a brilliant tool made to tackle a frequent issue: the "ERROR: Could not find zone 'en_zm_yourmap'" message that often appears when loading custom Zombies maps. The error occurs when a custom map is made for English (en) but your game is set to a different language. You may need to download the English audio packs (
Change the first line to your target language (e.g., change english to spanish , german , or french ). Save and close the file. How to Change Language Directly via Steam
in the console dashboard to see if additional language "Add-ons" are available for download. This mod forces the game to read Japanese
Community members often host these files on platforms like MEGA or Google Drive. You'll need the localization.txt and specific files for your target language. English Language Pack: Community-hosted on Google Drive Step 2: Replace the Files