If you’re having trouble getting Call of Duty: Modern Warfare missions to work, do not stress out, because you’re not the only player who has faced this issue.
Today, we’ll run through the causes of this error and how to fix them. With a bit of luck, you’ll be back in the game as usual again!
How to Fix the Missions Not Working Issue?
A large number of players have reported that they are unable to progress through the missions and that they keep resetting.
It is a significant problem, and the developers have yet to release a fix. However, there are some basic troubleshooting steps you can take to get the game to work again.
Follow this list in order so you have a better understanding of your current situation with this Call of Duty: Modern Warfare missions issue.

Fix #1: Check Bundle Information
Almost all of the players who complained about the mission tracking issue stated that they did not own any of the bundles that they were attempting to complete.
This is simply a visual bug that indicates to players that they can obtain specific items after completing missions even though the missions have not yet been unlocked for these players. So there’s a good chance you’re in the same boat as me with missing bundles.
In this situation, the best thing you can do is look up the bundles you’ll need to complete these missions. Otherwise, the tracking will be reset after each match, and you will be unable to obtain the new skins by completing the missions.
Fix #2: Reboot Your System
If you’re certain you purchased the correct bundle and there are no issues with payment confirmation, a simple reboot should resolve the tracking problem. Just make sure to completely exit the game before shutting down the system.
After the system has completely shut down, turn off the power for a few minutes and then restart it. After logging into your account, start the game and complete the mission.

Fix #3: Reset Game
Players had to completely restart the game at times to get the missions to work again. So, if you have a good internet connection, simply uninstall the game and download it again from the beginning.
It will consume a significant amount of your time, but you don’t have many options if you want to avoid the hassle of opening a support ticket [1] and waiting for an official response.
Fix #4: Ask Support
If, on the other hand, you have a limited internet package and are unable to download the game again, calling the support team is your best bet.
Their personnel will assist you in determining the cause of missions resetting after each match, and you can also request that they examine your purchase history for potential issues.
They will make troubleshooting much easier, and you will not have to worry about spending hours troubleshooting just to get the missions working again.

So, if your Call of Duty: Modern Warfare missions aren’t working, just contact these experts, and they’ll walk you through each step of the troubleshooting process once the issue has been identified.