Miller looked out the open door. The landscape below wasn't burning. It was loading. Great, blocky chunks of terrain were popping in and out of existence. A building would be there, then vanish, replaced by a low-res gray void, then snap back into high definition.
You might see one of these specific messages. Write down which one you see—it helps narrow the fix. call of duty black ops error exe cannot find-zone
Right-click BlackOps.exe → Properties → Compatibility → Check Run this program as an administrator → Apply → OK. Miller looked out the open door
Sounds like the game can't find a required file. Try these quick fixes (Windows): replaced by a low-res gray void
Go to your game folder, right-click BlackOps.exe , select > Compatibility , and check Run this program as an administrator .