1. Plug your usb into your xbox 360, go to memory, and move your profile onto your devise.
2. Open your usb using modio and find your profile, drag it to the desktop.
3. Open your profile in profile editor v2.
4. Select the game you want to mod, then click unlock all offline.
5. Save the file, and open up modio and rehash and resign, and hash block it.
6. Put your profile back on your xbox. and your done.
You can also do this with le fluffie, just open your profile select the game, go to achievements, unlock all, security and fix it.
http://www.megaupload.com/?d=32ZIGHKLhttp://www.megaupload.com/?d=Q80BS439and need le fluffie i dont got the link sorry