The reason might be that some vehicles have more detailed specifications than others.
I can’t say anything concrete tho because you didn’t list any examples and ontop of that my knowledge about tanks is rather limited.
Every nation’s vehicles underperform in some way or another be it the EF with its poorly working radar or the Mig29 with an absolutely butchered flight model
Pointing your finger at others and crying about bias just makes that part of the community dislike you, simply because you didn’t know better.
With prototypes Gaijin has magical words “the form in which it was most likely adopted”. And using these words they can add or remove anything they want.
Pointing out bias isn’t ‘whining’—it’s holding devs accountable. The community should demand fairness, not excuse double standards because ‘everyone has problems. If Gaijin applied the same scrutiny to all nations (e.g., requiring equal proof for armor values, flight models, or reload rates), no one would complain. But when certain trees consistently get ‘benefit of the doubt’ while others face hyper-skepticism, calling it out isn’t ‘toxicity’—it’s basic criticism. Fine, I won’t waste time arguing with those who pretend not to see the truth. But just know this—Gaijin’s hypocrisy is obvious to anyone who actually looks.
It didn’t get all the weapon because of balance reasons. I was just pointing, that Gaijin can implement prototypes in any way they want.
But even if we want to compare just service planes, there is A LOT of problems with Gaijins hypocrisy. All F-5s got flares because “it’s possible to install them”. Why not all F-104s got flares then (ROC F-104G doesn’t have them even when it has them in reality!)? Why french F-100D is stuck with AIM-9B, while american one can carry AIM-9E? Why Jaguars or J32A got chaff pod, while T-2/F-1 didn’t? And so on and so on.
And there is a lot of problems with Gaijins transparency. We don’t know what exactly they use to set stats of their vehicles
Not to mention the T2 and F1 dont have their ASM1s and T2 missing its quad bomb rack on the belly and twin bomb pylon on the wing (used to have on wing but gaijin removed it for some random reason)
Yak-41 is as far from Yak-41M we got in game as YF-16A to F-16AJ, these are equally “fake” planes. It doesn’t make them bad, we play a game and there nothing bad of having unrealised projects or unimplemented modifications.