War Thunder is a game which inspire me mixed feelings, but the dopamine release I get when I one shot enemy vehicles is pretty great
I personally main the comrades of the Sovietsky Soyuz (which imo have very good and very bad points at the same time, no depression in the Soviet Union 
)
One of my favorite vehicle is the 2S3M "Akatsiya", one of the great potato lobber in this (10.12kg of TNT, in a single shell!)
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Look at that, isn't she beautiful
Yeah volumetric armor fucked up many things big time, the Panther's mantlet seems to be made of vibranium or some shit, it eats shells like nothing
They also removed hullbreak so your ap rounds can just go through light vehicles with no armor and do nothing
But if you send enough explosive downrange, you can overpressure a lot of vehicles (the 2S3M is a good example, you can easily overpressure a Tiger turret, even a Tiger II although you need to use your brain a little on those)
Also this guy doesn't need to pen, doesn't even need to hit you :
Metal bawkses!!!!!