And the above is quite hard to understand - knowing that for PzIV a 50mm armor is modelled - which should be EASILY penetrated by T-34's gun out to at least 1000m, and from close rangle - also at almost any angle.
It's the PzIV that should have occasional problems with penetrating T-34, especially at angle and over 500m, or when hitting some round armor part (turret has some). The PzIv on the other hand is a retangular box build with 50mm plate, and much thinner side armor. Almost any hit should penetrate it... The 80mm PzIV will be another story, but for now there is 50mm PzIVF2...
On occasions I have penetrated PzIV twice from the rear, in the center of the hull, that should completly destroy an engine and probably set the tank on fire, but the outcome was little different - the PzIV (still running) turned back and killed me. Is the engine damage/destroy code working correclty ?? The tank damage code (and crew damage/incapacitation) definitely should be reviewed - based on collected in-game experience.
On the other hand:
IF I hit the engine from the rear, AND the shell flight path after going trough the engine would also cross an ammo box - would the tank explode ? Hmm...
BTW - do I see an :IS2: available as a smile ??