fix the update required problem for call of duty black ops 3 in rpcs3 emulator.we can download to additional PKG update file and install this file then fix this problem
stpe1
open chrome browser search (PS3 games update)
step2
select the first option PS3 games update
step3
and search bar will appear again search the game in search bar (call of duty 3 black ops)
step4
check the serial number in rpcs3 emulator to which game you want the PKG file. you select the wrong file game will be not open
step5
after you can download the file drag and drop the file in rpcs3 emulator
step6
and check the version for your emulator version has been changed after you install the PKG file. and run the game play the game