1. First, open the game and enter. After entering, click "Options" in the lower left corner. After entering, click "Account" settings, and click Account. Click "Activision Account" after entering, and select "Change Display Name" after entering the Activision account.
2. Look carefully at the following statement: "You got a token that can change the name once every six months", which means that you can only change the name of the game once. Finally, enter a name and click OK.