The video above shows you the clan tag glitch that you keep seeing when you plan MW3. Below is the letter combinations to use to get the letters you want.
ÁA= A button
ÁB= B button
ÁC= X button
ÁD= Y button
ÁE= LB button
ÁF= RP button
ÁN= Start button
ÁO= Back button
ÁP= LS button
ÁQ= RS button
ÁR= LT button
ÁS= RT button
ÁT= Up arrow button
ÁU= Down arrow button
ÁV= Left arrow button
ÁW= Right arrow button
You’d better enjoy the little glitch / hack while you can before they push an update to fix it.



