Modern Warfare 3 Symbols in Clantag - YouTube

Go to your clantag in your MW3. You must unlock a specific rank to use clan tag. Call Sign -> Clan Tag. In the box press right trigger and use A under the 2, should have a ' above it. Must be CAPS. The choose one of the following letters below and put it next to it, for example AD would be the Y button

D=Y button
B=B button
S= RT
R=LT
T=Up on the dpad
O= Back button
U= Down on the Dpad
V= Left On the Dpad
W=Right on the Dpad
J = Invisible name ( Works sometimes! )
A= A button
C=X button
E= LB
F= RB
M= invisible or name is under clan Tag or makes your GT inside your clantag its random
N= Start button
P= Ls
Q=Rs