For all of you who are new to Jtags 1: open XeXmenu and find the main directory 2: make a folder called Games 3: open the folder called games and make a folder called (the game you want to install like cod4) 4: open that folder and press (Y) copy dvd 5: wait untill the game is installed 6: replace the default_mp.xex with the patched one 7: put the patch from your computer to your usb 8: plug your usb in JTag and navigate to it and copy the patch (make sure the patch is called patch_mp.ff or it will not work) 9: navigate back to the folder called games then (ex:cod4) and press (A) on the installed games folder and press (Y) paste the patch will paste there 10: scroll down when in the Ex:cod4 folder and press (A) on the default_mp.xex 11: press (A) on system link or split screen 12:have fun!!!