u HAVE TO DOWNLOAD FIRMWIRE 3.0 TO YOUR USB. tHEN eXTRACT IT TO A FILE CALLED MW2HACKPR0JECT THEN GO TO YOUR XBOX PUT THE USB INTO THE XBOX. gO TO SYSTEM SETTINGS THEN GO TO MEMORY. fIND THE USB CONFIGURE IT THEN SHUT OFF YOUR XBOX RIGHT AWAY. GO BACK TO YOUR PC THEN MAKE A NEW FILE NAMED JTAG MEDIA. DOWNLOAD MEDIA101 THEN EXTRACT IT TO THE FILE U JUST MADE (MEDIA101) THEN GO BACK TO THE XBOX PUT THE USB IN THEN IT SHOULD SIGN U OFF XBOX LIVE IT SHOULNT LET U SIGN BACK IN SO JUST RECOVER YOUR GAMERTAG THEN WHEN U CLICK ON SOMEONES GAMERTAG WHERE IT SAYS INVITE TO PARY INVITE GAME,ETC ALL THE WAY AT THE BOTTOM IN SHOULD SAY HACK ACCOUNT , WHEN U PLAY A GAME EXAMPLE- CALL OF DUTY IT GIVES U A MODDED MENU AND HACKED/10TH PRESTIGE LOBBIES AND THATS HOW U GET A JTAG