Call of Duty MW3: Campaign not working error - Possible fixes

Published: 22:13, 02 November 2023
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Call of Duty MW3: Campaign not working error - Possible fixes
Having issues with loading the Call of Duty: MW3 campaign? Here are some fixes!

Key Points from the Article

  • Power cycle your console or PC by fully restarting it
  • Whitelist MW3 in antivirus and firewall apps to allow internet access
  • Verify integrity of MW3 game files on PC to check for corrupt files
  • Reinstall MW3 as a last resort to fix issues with campaign early access
Having issues with loading the Call of Duty: MW3 campaign? Here are some fixes!

The 7-day early access is set to kick off on Thursday, November 2nd, at 6 pm CET / 5 pm GMT / 1 pm ET / 10 am PT. If this time has not yet arrived, please be patient and wait until it does.

Call of Duty fans were eagerly anticipating the 7-day early access period for the Modern Warfare 3 campaign, an exciting bonus for those who preordered Call of Duty Modern Warfare 2. 

However, the enthusiasm was met with frustration for some players as they encountered issues with their MW3 campaign early access not appearing on platforms like Steam, Battle.net, PlayStation, and Xbox.

If you find yourself in this troubles, rest assured, as we've compiled a set of solutions to address this problem.

Power-Cycle Your Console or Restart PC

Some players have discovered that a simple solution to the issue is to power off their PC and then power it back on. Ensure that your game download has indeed completed; it might display "Ready to Play" while the download is ongoing. 

If power-cycling your PC doesn't resolve the issue, please wait for the download to finish. 

Here are the steps for power-cycling your console on both PlayStation and Xbox:

  • Completely turn off your console.
  • Unplug the power cable from the wall.
  • Leave the console unplugged for 2 to 5 minutes.
  • Reconnect the power cable and turn the console back on.

Whitelist MW3 in Your Antivirus and Firewall Apps (PC)

Your PC may be blocking the game from accessing the internet and downloading necessary files, which could be the root cause of the problem. 

To address this, you should ensure that your antivirus and firewall applications are not obstructing Modern Warfare 3 from connecting to the servers. You can achieve this by adding the game to the list of permitted programs in your security applications.

Verify Integrity of MW3 Game Files (PC)

Corrupted or missing files due to improper installation can be a common reason why MW3 Campaign early access fails to start on your PC. 

To rectify this, utilize Steam's file verification feature:

  • Right-click on Modern Warfare 3 in your Steam library.
  • Select "Properties."
  • Go to the "Local Files" tab.
  • Click "Verify integrity of game files."
  • Allow Steam to perform the verification.
  • Once complete, restart your PC.
  • Launch Steam and initiate Modern Warfare 3.

For Battle.net users, click on the blue "cog" button on the game's page and select the "Scan and Repair" feature. Let the Battle.net client work its magic, fixing any missing or corrupted files.

Reinstall MW3 to Fix Campaign Early Access (PC and Console)

If all else fails, the last resort to address the "MW3 Campaign Early Access Not Working" problem is to reinstall the game. Delete the game from your system, reboot your PC or console, and then proceed to download and install the game again. 

This will ensure that you have all the required files, guaranteeing a successful MW3 Campaign Early Access experience. Avoid launching the game until you're certain that all files have been downloaded and installed.


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