Instructions
Select Multiplayer from the Call of Duty 4 start menu
Select XBOX Live and sign in with your user account.
Select Barracks and then go into the to Clan Tag menu
Open the accents menu in the text editor and select an accented e character (é or è). If you want the revolver cocked, choose the character with the accent pointing left; otherwise choose the accent pointing right.
Select the degree symbol (°) from the accents menu as well.
Open the symbols menu and select the quotations symbol (") two times.
Press the start button to exit out of the text editor and view your clan tag.