not right username

one of my clanmates is trying to run CDC...but it is reading his old username

how can he get his username to what it should be?

Tell him to check the user.ini and see what name it says there because cdc reads the name from that file.

If it is:

4. Your soldier name as read form your User.ini file

he needs to log onto a server using that username for it to update.

Example:

Your GUID entered in your TWL account is:
SSG-SniperC(SF-D)

That same EXACT name must be in your user.ini file in AA to verify in CDC and join a match