(adsbygoogle = window.adsbygoogle || []).push({}); Guys can someone help me iv tried renaming my USB to dev_usb000 an taking away .cfg on the controls file an iv tried both slots on my ps3? can someone please help me?

name the cfg menu file, "buttons_default" and make sure that it is a .cfg file. (should say CFG File to the right of it and NOT .txt).
put the file on the ROOT of your USB (not in a folder, so when you open your usb, it's right there). Remove your USB, and insert it into the right slot of your Ps3. Go online on Mw2, and join a CFG infection lobby, go to split screen, load a profile, turn playstation network unlocks on and start the game. when the game starts up, press select, and then use the controls of the menu to open it, then close it. End the game. Go to Private Match, open the menu again. And done.

Wrong place to post, should be in questions

Depends, are you using a jailbroken PS3 or not?