Although contemporary Call of Duty titles are mostly known for their multiplayer content, some COD games have underrated singleplayer campaigns.

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.

Call of Duty: Black Ops IV is a payed game, which you need to purchase as a disc (physically) for your Xbox One/One S/Series X or digitally on the Microsoft Store, for any Xbox One/Series X|S console. Because of that, this game requires an active Xbox Live Gold subscription or Xbox Game Pass Ultimate.

Fans are disappointed as the Game Pass didn't include a single Call of Duty game. Phil Spencer, CEO of Microsoft Gaming, confirmed last year that Activision Blizzard video games will hit the Game Pass in 2024.