After Scotty sabotaged the Vengeance, so it was temporarily unable to fire weapons, why didn't the Enterprise launch a shuttle craft to nearby Earth to call for rescue? Or why didn't they load the shuttles with torpedoes and fly them by remote into the Vengeance to disable it, while it was temporarily powerless? (The ship obviously still could access some of its shuttles, because Spock ordered evacuation to the shuttles when Enterprise was falling towards Earth). Actually, why didn't they just use a shuttle to get Kirk and Khan over to Vengeance when they were trying to board that ship?