True, the D will never be a fighter, but compared to other fighter bombers (Tornado, F-111, A-6, Su-24, Jaguar, JH-7 etc) it's A/A armament is quite good (with the Mica IR).
For DCS it doesn't matter, if the Aarmat is no longer in service (if the D can use it), the Walleye is not in service as well, but you can use it in the F/A-18.