IS-3
We have already talked about IS-2 (The IS acronym is the anglicized initialism of Joseph Stalin (Ио́сиф Ста́лин, Iosif Stalin) before. Now we will proceed to its successors. It had certain engineering novelties, such as the cone-shaped frontal part of the hull. The idea was to improve defense, but in fact, it made a production process more complicated and the effectiveness was questionable. So, in the next IS-4 model that change was reverted. Overall, IS-3 had more armor than its predecessor, making it one of the heaviest tanks of the time.
IS-4
IS-4 had even more armor than IS-4. However, it turned out that additional planting had little effect: the guns that could not harm IS-3, still could not do it, but the guns that were able to penetrate IS-3 armor, could penetrate the reinforced planting of IS-4 as well. Combined with the growing power of top anti-tank guns, it was unrealistic to create an impenetrable tank in 1945. The reputation of KV tanks in 1941 as being nearly impossible to kill, was largely due to the fact that the German army lacked powerful anti-tank guns at the time.
The main armament of the IS-2, IS-3, and IS-4 tanks was a solid 122-mm gun D-25T.
We will keep posting new units that will appear for the first time in the Strategic Mind series, so stay tuned!
With best regards
Starni Games team