This was taking from http://www.leakedhalo.tk and this tutorial is by the administrator (shizamandiza) ITS PRETTY SWEET AND IT HELPED ME GET MY ELO REALLY HIGH!!
:::: Tutorial by shizamandiza::::
As you all know I play rainbow six: 3 more then I play halo 2 and I knew about the ELO glitch but I never tried it or looked into it.... TODAY I DID
I am now number 3 on the leaderboards on rainbow six: 3 team survival I can always get back to a number one, but I decide to play cause I love that game.
This is the way to GLITCH YOUR ELO REALLY HIGH!!!
1. Go play rainbow six: 3
2. Sign into xbl and create a match.
3. NON-DEDICATED
4. You want to choose carnival and make sure there is friendly fire on.
5. Once you choose carnival it will say retrieving personal statistics, once it says this unplugg your ethernet cable in the back of your xbox.
6. DO NOT LET IT LOAD, if it loads carnival then you did it wrong, you need to pull the cable the second you select carnival, then if you do it right it will say Start Trouble shooter? Plug your ethernet cable back in and press cancle.
7. Sign back into XBL and go to statistics, go to team survival and click the first name rapidly.
8. It will load your carnival map. Lauch carnival (WITH FRIENDLY FIRE ON!) Blow yourself up with a grenade, and now your ELO will be around 260,757.