Im pretty sure gpd is only for xbox, which is the gamer profile for the game, on ps3 its xml which requires a jailbroken ps3 to access. savegame runs through cod4_sp, so that wouldnt work. How ever the only way is mp and cm, which can only be accessed through bypassing.
You can also edit the default_layout.cfg in the latest patch, to get these codes to work through the patch, other than that im trying to find the offset where they stopped Dvars working through the "dev_usb".. So people can download my 1.4 patch so they can use there Dvar codes Online.
:beer:
I think I mean the gpad0_cm and _mp files..
its the equivelant of a .gpd, .gpd is both of those combined because xbox is like that for some reason.
Haven't been on ps3 for awhile so I don't remember.