Clear the Cache of Your Console. Another common reason for the Call of Duty Modern Warfare Multiplayer📈 not working error is the corrupted cache data. In this case, you can try clearing the cache files on your📈 PC or console to fix the issue.

From COD HQ, head to the Modern Warfare III section and select the Campaign📈 tile. Even though the game has already launched, we don't want to spoil anything about it. Follow the prompts when📈 starting the Campaign to choose your difficulty setting and then get right to it.