If maps are greyed out, delete the game data utility (NOT save data), reinstall the patches, then reinstall DLC.
✅ You love classic Zombies and want all maps without hunting for download codes. ✅ You still play PS3 online and want the full BO2 multiplayer experience. ✅ You’re a collector – this is the rarest BO2 physical disc in PAL regions. If maps are greyed out, delete the game