Evalu8ter,
Very good summary. From a fast jet point of view a well flown helo was always a very challenging target. Having done a considerable amount including on NVGs it was the advent of HMS and certain a-a missiles that have made the fighter pilots task much easier. The latest heat seekers can be used as a FLIR and can be used to get the pilots eyes on, even night lights out. Obviously RWR/Chaff/SPJ/DIRCM/MWS become essential against a fighter that is so equipped.
I have never seen any study as to the use of an LGB to take out a helo? I would imagine a 500 or 1000lb going bang close by would not be too good?