It sounds like you’re looking for a of Call of Duty: Black Ops 2 to run on the PPSSPP emulator .
If you want to play a legitimate Call of Duty game on the emulator, your best option is: Call of Duty®: Black Ops II on Steam Hard Drive: 16 GB. Sound: DirectX 11.0c compatible. call of duty black ops 2 ppsspp highly compressed top