Use this video dude.

Fat and slim it dosent make the diffrence it's just the same, its simple to Jailbreak aswell you will need a usb 500mb minuim. What you do is download the jailbreak, and on your usb you create a folder called PS3 then in the root of that you put another folder called UPDATE and you put the jailbreak in that. On your PS3 you then go update system then update via storage media, then your done. If you need more help just ask or when you have your PS3 and want to create a backup just ask aswell. + rep

PinKyHosTs10Th wrote Fat and slim it dosent make the diffrence it's just the same, its simple to Jailbreak aswell you will need a usb 500mb minuim. What you do is download the jailbreak, and on your usb you create a folder called PS3 then in the root of that you put another folder called UPDATE and you put the jailbreak in that. On your PS3 you then go update system then update via storage media, then your done. If you need more help just ask or when you have your PS3 and want to create a backup just ask aswell. + rep

Shane were you the one who messeged me how to jailbreak? cuz i think it was you

Kieranbarber wrote Hey guys i am kinda new to ps3 modding so i dont know much as i am an xbox 360 modder
i am getting a PS3 Soon but which one is easier to jailbreak slim or fat and what u need e.g. how much memory do u need on a USB
and if someone could explain how i could jailbreak it to host 10th and make backups n stuff plz comment or PM me and if it helped me i will +100 rep

however one thing no one has said yet is that hosting on mw2 is now patched unless you have updated and used the bypass from the 1.12 which then only lets you join other bypassers who are few and far between nowadays!!!