You missed the sound files. Fix: Re-download the sound_english_sp.pak (for campaign) and sound_english.pak (for MP/Zombies). Ensure they are in sound/english/ , not sound/russian/ .
Online anti-cheat (TAC – Treyarch Anti-Cheat) detects modified language files as a potential hack. Solution: You cannot play ranked multiplayer with modified language packs on official servers. Use this language pack only for Singleplayer Campaign, Solo Zombies, and LAN play . For multiplayer, revert to Russian. You missed the sound files
For a technical report (dummy structure, for reference only): For multiplayer, revert to Russian
A: Russian versions sometimes censor blood and gore (zombies turn to ash instead of losing limbs). Installing the English pack usually restores the uncut international visuals. : Open these files with Notepad
: Open these files with Notepad, delete all existing text, and type only the word English .
Note: This method works best when combined with Method 2 (having the actual English files present).
Once you have the files, follow these steps to manually swap the language: Replace Zone Files : Navigate to your installation folder (e.g., Steam\steamapps\common\Call of Duty Black Ops II ). Go to the folder and delete the folder. Replace it with the downloaded Update Localization : In the main directory, find localization.txt localization_mp.txt localization_zm.txt