Aim-9Gs are actually perfectly reasonable, as all the Phantoms at this BR have the same (rear-aspect Aim-9), sure they are a little lack luster but that is a compression issue.
I personally dont like the radar but again, its perfectly reasonable for the BR, same for the RWR (also on that note RWRs are not affected by Ground clutter and that is precisely what the PD mode is for on the radar)
But the Phantom FGR2, FG1 and F4J(UK) all do ahve a major balance issue, that is the Skyflash DFs, these are largely an equivalent to the Aim-7E-2 found on the F-4E and not an equivalent to the Aim-7F found on the Phantoms at the same BR and leaves the British Phantoms way more under-gunned than the 9Gs do. These could be replaced by Skyflash SuperTEMPs (reported and accepted, but not implemented) but they wont for some reason
As for its BR. no. in its current state it wouldnt be any lower than 11.7 for various reasons, just compare to something like the Hawk 200 RDA
E.g. the British with their abysmally poor Stormer HVM at 10.3, and the Rapier at 9.7 which is vastly superior.
Or - another classic in such discussions - the Italian OTOMATIC at 11.3: Very powerful and fun, but outclassed in range by everything down to everything 1-1.5 BR’s lower…
Having used both, I think it depends on the threat/context rather than one being superior than the other. Rapier I have terrible time with the target not dying with the first or even second missile and I waste stupid amounts of time hitting the same target over and over again
Stormer HVM is way harder to use, but generally the target does die in the first hit. it is Especially superior vs Helis
I haven’t researched the subject but I remain skeptical. It’s more likely that there is simply more players of +1BR in [big nation that said plane usually gets paired against]. But I’m gonna make no claims here.
Since we have no evidence that rank matters in-game whatsoever (apart from battle pass tasks), that’s probably just for research reasons. Or an oversight.
MD452 IIC is somehow higher than the Mig15 and f86.
Mystere IVA is somehow equivalent to the 15bis and the F2 (yes it’s 8.7 but 8.7 is basically 9.0 atp)