NEW* How to de-rank Someone

By the Way- This is the Original Tutorial and I don't mind if you make one about this glitch but credit would be appreciated. Those who think Z5W was the original founder, look at the posting dates.
Requirements:
-A Friend/Victim
-Level 50 in Combat training
-This glitch is patched but can be used to get 16th Prestige

Steps:
1)Invite your friend/victim to a player match and Xbox Live Party
2)Tell him to go to his PlaryerCard>Leaderboards>S&D
3)Tell him to hit Y to change filter
4)You change the Lobby to Combat Training
5)Tell your victim to open up the xbox live party and click on your profile then view CoD PlayerCard
6)Tell him to keep pressing B until he gets to his PlayerCard and go down to Prestige Mode
7)Tell him to go through all of the steps EXCEPT "ENTER PRESTIGE"
8)Change to Player Match and tell him to Enter Prestige
9)Laugh as your victim cries

Unfortunately, I found this out the hard way trying to prestige in Combat Training. I found this with the help of some friends. I'll post a tutorial on how to do the "Unlimited Lives in S&D Combat Training" after the latest patch so you guys can get your victim up to level 50. Link This isn't my tutorial but when I made one it got removed. I noticed 1 thing wrong with this tutorial though. When you change the lives and health you hover over unlimited then accept your friends invite. The rest is correct from there.

This sucks that this is patched I was going to try and derank some random screaming kid on Xbox Live. Still a nice share though because now the 16th prestige glitch available!

Oh i miss the good old days were you get that one odd kid that is screaming in your 10th lobby and then you just go to his name "Derank" and then "Ip ban" right out of the lobby. Man Mw2 lobby power's are beast.
just saying

Haha yes, I remember in the lobby's I used to get into it gave the kick, ban, and derank option it was... EPIC!