Place your files in a folder named packages (or just on the root) of your USB.
The combination of files is the standard method for installing digital content on modded PlayStation 3 consoles or the RPCS3 emulator pkg rap files ps3
Alternatively, just having the RAP in /dev_hdd0/exdata/ on the internal HDD often allows the system to auto-activate the license the first time you launch the game. For RPCS3 (Emulator) The process is simpler on a PC: Open . Go to File > Install Packages/Raps/Edats . Select both your .PKG and .RAP files and click Open . Place your files in a folder named packages