ok this is what you do. get a USB Flash Drive. Then put the usb in your ps3 and copy your COD4 SAVE DATA on there. Then go to your computer and open the COD4 file. In it should be GRADO_SP: Which is for single player and GRADO_MP: which is mulitplayer. Then open multiplayer and delete all of the stuff and put in the cvr list. Save it then safely remove your usb then put it back in your PS3 overwrite the old savedata and now your done. NOTE: its probably already patched i wouldnt waste my time. Please Rep+ if this helped you