War Thunder is a game that I honestly can't get enough of right now. It's quick, mechanically fun, and the tanks feel great to use.
I've been playing it for a little while now and I have found one tank that has really taken me by surprise: the T-26-4 aka Stubby Boy (that's what I'm calling it).
This tank starts off as one of the worst tanks, in my opinion. The starter shells barely penetrate any armor at all. Once you get the upgrade for the next set of shells, this tank opens up and begins to decimate the Tier 1 battlefield if you can play it correctly.
Down below is a video of me using the tank to great effect. Hope you enjoy!