Not a whole lot you can do without jailbreaking that I know of, sorry.

Boar wrote Not a whole lot you can do without jailbreaking that I know of, sorry.

I have seen that you can mod it but I don't know how to do it, can you please help

All You Have to do is go on youtube and type in MW2 CFG Mod Menus or something like mw2 cfg downloads or anything like that and look up the video and go to the download link download it then when its downloaded you go to it drag and drop or copy it and paste it doesnt matter and you have to open the usb thats plugged in to the computer and put it in the root of your usb or if u dont know what the "ROOT" of your usb is its as soon as u open your usb on the computer Then when its on the root of your usb Just Put it in the 2nd slot of your PS3 and go on mw2 and ask people for a cfg infection then go to splitscreen load ur offline profile then turn Online Unlocks On And start match and when u get in the splitscreen game Push Select Then Up And then exit out and go to private matych and enjoy just press select then up and your menu is out and ready so u can play with mods i hope this helped