I mean even if it is good, there’s one thing (well out of many) that’s probably worse than Russian “Technology” (imagine missing a converted Boeing 707 with two of your best missiles) it’s probably South African. Remember, they’ve been under sanctions regarding technology transfer and missiles for the best part of 50 years, if not more, and so they have completely made it themselves.
Chances are, it’s not going to be as good as something like, say, AMRAAM, where you’ve had what is effectively a consortium pool their brains and go “hey, all you engineers at GD, Raytheon, BAE, etc., all of you go design a really really lethal means of blowing up a plane at 40 miles away”
Whether it can or can’t isn’t the issue, its a simple matter of adding a second F-15 because ARH would increase its BR, potentially by a lot if multipathing gets what it deserves.
That being said I do think the F-15 we have in-game was the version that tested AIM-120B so maybe they’d toss that on as a way to convince themselves to decompress the Gen3/4 area.
Sparrow and AMRAAM? I’d have thought it would only be Sparrows but if it has the radar and can fire the AIM-120 then sure, I was always under the impression it was basically a more modern Kurnass 2000 for the TAF