Leon spot on about EF-3.
As far as other A-G capability it would be purely emergency only, nothing else available. The gun was very accurate in A-G on a range but due to the way it did range finding it wouldn't necessarily be so in a real world situation. SOme people seem to be linking it to Iraq but iirc it was first introduced for the Balkans. I nearly got to go to Solenzara.
Likewise the GR for AA would be self defence only, and not great at that given turn performance and the limitations of AIM-9. However with the move to ASRAAM and the addition of off-board cueing, I would say self defence would be very good, but I wouldn't plan to use it deliberately.
Nautilus I think that would either be an opportunity shot due to luck (plus brilliant crew skills, ofc
) or video game fantasy!