Some versions (often those with RU or PL keys) are locked to a single language and do not show an English option in Steam. To fix this, you must manually replace game files:
For region-locked copies, some players use community-made "Language Packs" (replacing the localized_English_iw00.iwd english+language+pack+for+cod+black+ops+2
For consoles, the game language is usually determined by the system settings rather than a downloadable pack. System Settings : Go to your console's Settings > System > Language and set it to English (US or UK) Region Swap (Xbox) Some versions (often those with RU or PL
Changing Call of Duty: Black Ops II to English involves using Steam's language settings or manually replacing language files for region-locked versions. Users can update language via Steam properties, or, if restricted, by replacing localization.txt Users can update language via Steam properties, or,
By following the Steam Properties method, most players can quickly get back into the action with full English support. If you're stuck with a region-locked copy, community-shared localization files remain the only viable workaround.
localized_english_iw00.iwd through localized_english_iw15.iwd (or similar numbering).
If you are looking to switch your game to English, this guide covers the most reliable methods to get your game sounding and looking exactly how you want it. Why You Might Need a Language Pack