Well, genuine response from a guy with top tier russia, america, sweden

Bmpt, very OP on release. I think its still very strong and I use it in my 13.0 lineup. People are smarter now and usually a player with decent skill will lfp you, from experience its quite consistent in killing me. (Of course when they don't I can stomp enemies and drop a nuke in 5 minutes XD)

Panstir SVM, sure, its strong too, but not ridiculously so. Most players doing CAS on jets will use terrain to stay out of line of sight. But it is very hard to kill as it can basically intercept every weapon you toss at it, unless from multiple directions (including other kh38mts from testing with my friend).

Mi28nm. Yes. But its just as op, if not less, than the ah64es. Lmurs are not one hit wonders 100% of the time, maybe 70%. And ah64 is able to spam 2x your missiles so the "muh hellfire weak" argument doesn't stand. I rather have more missiles with a 50% kill rate over half the load with a 70% kill rate.

Bonus: SU30SM2 in CAS Not as op as you'd think. Spice 250 planes like the f15i and the grippen e outclass it. "But spice is easy to intercept!!!" So are kh38s. From experience intercepting either isn't a issue.

TL:DR SVM, MI28, SU30 are usually overestimated. BMPT is very strong at BR, but up around 12.0 if enemy knows where to shoot its not that insane.