The game is based around combined arms battles on air, land, and sea with vehicles from the great war to today. So definitely another loss of classification, however, it was just the turret assembly and commanders hatch assembly, but nothing too big, the post was promptly taken down, however a few people saw it. It is true that certain war thunder leaks have been way more serious than others in terms of classification, and some of them have involved posting material that can be found relatively easily online.
A leak for the m2a2 bradley happened on the warthunder machinery of war forum
The documents being a set of export restricted pages going over commander's hatch, turret assembly and spall liner.
For the 13th time, a war thunder player has shared sensitive military information on one of the video game's forums Developed by gaijin entertainment, war thunder is a multiplayer video game. Well, someone leaked classified documents on the m3a3 bradly I did some digging and by the backprint on the photo used, it came from a russian/ukrainian hacker group known as beregini