Yes, FTP to your ps3 internal GAMEZ (or BDRIPS or wathever) folder.
If the COD files are on your PC can you simply overwrite the ones inside the PS3_GAME folder with the ones in your linked download then ftp across the whole lot to the PS3 and play? (Of course with a disc inside).
Did you at least edit the PARAM.SFO file so it says App Version 1.02?
Dont need to
Yes. Be sure to make sure the PARAM.SFO file says app version 1.02
•How to get COD BO working Easy Pack:
•PKG method (BLES01031): forums/588635-post1277.html
•Clean metadata: forums/580805-post764.html