(e.g., you bought a non-English region version), try this first:
Many copies of Black Ops 2 sold in Central Europe, Russia, and the Middle East were designated as "CZ/RU" (Czech/Russian) or "PL/RU" (Polish/Russian) versions. These versions often: Call Of Duty Black Ops 2 Pc English Language Pack
Are you missing English for the mode?
If a Polish player runs a Polish localization, the in-game minimap markers might read "Dżungla" for Jungle. When their Spanish teammate screams "Selva" (Jungle) over Discord, the Polish player’s brain must perform a translation lookup. That 300-millisecond delay can mean the difference between a kill and a death. The English Language Pack eliminates this cognitive friction. It forces the entire team, regardless of nationality, into a single, unified lexicon. On European PC servers, where a single lobby might contain German, Turkish, French, and Russian players, English becomes the lingua franca not of geopolitics, but of the clutch play. When their Spanish teammate screams "Selva" (Jungle) over
If you want, I can provide step-by-step instructions for switching the language on Steam, locating the language files in the game directory, or troubleshooting missing subtitles. It forces the entire team, regardless of nationality,
The voiceovers for all three modes: