Kill a legionary, don his armor and save. Get a flamer or Incinerator. Go to the two story building in Cotton Cove. Go to second floor. Wait until after late at night. Enter Aurelius(s) office and walk up to. Burn him to death as he sleeps, save. Secure your weapon(s) and head away rapidly from Cotton Cove. As soon as your monitor goes from Danger to Caution, Fast travel somewhere safe and save.