when your at the dashboard you go to memory and move your profile from the harddrive to the usb if its in your xbox then on the downloads on ttg if you go down under quarintine zombies it will say hadzz gt editor you can get that version or you can update to the new version by clicking on the little circle in the corner if you update you can shadow your gt easy it can only be 4 letters and you pick your 2 colors then you press save to modded profile and if you have a clan tag you can mod it to anything you want and when you mod it regularly you can add buttons and everything so download and get to modding happy modding you guys