Yak-9T - incredible firepower (or maybe incredible tank's lack of armor?)

[Pershing]

Hi DT
Please pay attention on strong disproportion between aircraft's firepower and armor of tanks and self-propelled tank destroyers.
See results of an on-line sortie here - http://www.il2.corbina.ru/sortiedeta...&playerid=2245

Destroyed in only one(!) sortie:
21(!) tanks (2 of them were heavy Pz.VIE "Tigers"!)
6 APCs Sdkfz251.
5 armored Rocket launchers (Opel blitz Rocket)
4 trucks
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Total: 36 tanks and vechicles

Please do something about it