Error Loading Fastfile !!top!!: Black Ops 3

Navigate to your Black Ops 3 install directory (usually C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Black Ops III\ ). Go to usermaps/your_map_name/zone/ . Delete the .ff and .xpak files associated with your map.

When all else fails, you have two final resorts: black ops 3 error loading fastfile

Real-time antivirus can “lock” a fastfile while scanning it, causing the game to see it as unreadable. Navigate to your Black Ops 3 install directory

The “Black Ops 3 error loading fastfile” is infuriating because it stops your game dead with a message that seems technical but offers no solution. However, in 99% of cases, It is almost always a corrupted download, an overzealous antivirus, or a conflict with a Steam Workshop mod. in 99% of cases