This usually means the specific "Campaign Pack" add-ons haven't been downloaded or installed separately from the main game file. Trial Access:
If you have already downloaded the game and encounter issues: Locked Campaign: Call Of Duty- Vanguard Torrent Download
While the player base has shifted to newer titles, there are still active servers for multiplayer and Zombies modes. Troubleshooting Common Issues This usually means the specific "Campaign Pack" add-ons