If you're looking to transfer or back up your game, PS4 games can be exported to an external hard drive via the PS4's built-in features, but manipulating or installing PKG files directly requires specific technical knowledge and tools that are not widely recommended for casual users.
Regardless of the installation method, Black Ops 3 offers three distinct game modes: call of duty black ops 3 ps4 pkg
BO3 on jailbroken PS4 supports (imported from PC). You’ll need: If you're looking to transfer or back up