A very common glitch after manual patching is the "Incompatible Data" error when joining multiplayer matches. To fix this:

Don't let a language barrier ruin the iconic "No Russian" mission or the intense finale. Follow these steps, and you'll be back to hearing Ghost and Soap in English in no time!

Scroll down through the list of packs until you see the . Click the Download arrow next to it. Once installed, restart your console and launch the game. For Xbox Series X|S and Xbox One Open My Games & Apps and highlight MW3.