I don't get this "request visual" thing. Why? You have the target in sight so Hit it square on. The ILS goes AWOL. You visually fly the centre line; Mk.1 eye ball maintains the correct perspective for 3 degrees. Guess what you follow the now defunct ILS signal. Job done, it's called piloting. Go around with the crash point in sight is daft, period. If the signal stays off how are you going to make the 2nd approach if there is no back up? You divert and should get your back-side kicked by the D.OPs and captaincy questioned.