To tie it together with the Tornado thread, I see that your idea is roughly this (considering new BR brackets and AMRAAMs for F-16s):
13.0 - bracket for early gen 4 fighters
F-16A
MiG-29
F-14B
13.3 - bracket for IRCCM, gen 3 Fox 3 slingers and light gen 4 fighters with Fox 3s
French F-16A
F-15A
Su-27
Tornado F3 Late
AV-8B Plus
F-4F ICE
F-16 ADF
MiG-29SMT
JF-17
13.7 and up - bracket for advanced/strong gen 4s with fox3s
And this is a minimalist idea, with as little changes as possible and using current Gaijin logic, so they will hopefully make these changes.
I think you also can add limited “heavy” 4thgen too. Like F-15A(with realistic amraam added), J-11A.
Maybe limit their loadout to these “light level”. Like 6xAMRAAM and other only IR, 6xRVV-AE and other only SARH&IR.
It’s problematic, because R-27ER outclasses AIM-7M and AIM-120 outclasses R-27ER.
With current Gaijin logic F-15A and Su-27 would be equal on a basis that Su-27 has better missiles and F-15A has better flight performance and avionics.
J-11A would be equal enough to F-15A with AMRAAMs, but Su-27 and J-11 wouldn’t.
Ideally I think they would have added a BLK42 F-16C with AIM120As, but I think this change is overall not horrible, because otherwise the F-16C-52 would be permenantly stuck with early AIM-120C which would either force the PoBIT F-16C’s (latest variant in US service with AESA and AIM120Ds and AIM9X-3) to be stuck with AIM-120C and 9x-1. OR there would be no circa mid 2000’s f-16, and we would instead have a jump from 1990’s 120A/9M F-16 straight to 2020s 120D/9X3 F-16.
While it’s not ideal, I think it is a good change because it allows the F-16C-52 to get it’s armament of AIM120C-5 and AIM-9X (when they decide to add it)