I meant it's a prototype that was finished in the cold war. I don't mind if people mod the IS-3 and Panther2 in but I wont play on that server because the IS-3 is first of all vastly superior to any tank of the era including the Panther2 even though Panther2 was never made.
If people mod the IS-2 and Panther/Tiger back in that would be great because those tanks actually served in WW2 but the IS-3 only served in the cold war and would completely demolish anything of the WW2 era. The armour was 120mm front I believe at a 45degree slope because the front was shaped like the front of a boat. The turret was somewhere in the region of 200mm and was circular shaped so it increased effectiveness still. I believe it has the same 122mm gun as the IS-2 with a longer barrel but it might be the same barrel.
In the end the IS-3 would still demolish anything that the germans had in 1945. People will say King Tiger has 150mm front armour 45degree but the steel was of a terrible quality, the russians captured one and tested it against an 85MM gun from the T34/85. The gun didn't penetrate but it cracked the armour and would have sent shrapnel into all crewmen who were in the hull. The quality of steel used in the king tiger was terrible. The tiger on the other hand had the best quality steel of the war and that's why its 100mm was so effective even when flat.
I wouldn't put too much trust into those tests, esp. considering that the KT in question was hammered by many different caliber guns in those tests = not the ideal method used to obtain accurate test results
Also you might wanna note that armor cracking on KT's hit in combat wasn't something that was observed by any of the German heavy tank battalions. Infact in the battalions' own reports the exact opposite is noted as being the case, accounts reading that even guns such as the mighty British 17 pdr or American 90mm both were found to be completely ineffective against any part of the Kingtiger's frontal armor, leaving behind only dents. So the armor seems to have been just fine quality wise.
As for the armor on the IS-2 AND IS-3 however, their armor wasn't of what you'd call very good quality, esp. not considering that they mostly used cast armor, and not much of the more durable rolled homogeneous armor used on German tanks.
If the IS-3 wouldn't ruin the game in terms of balance I wouldn't mind people modding it into their servers, it's their server after all they can do what they want but it would ruin the game in terms of balance. The Germans wouldn't have a chance even with the KT modded in.
Nah, it would be the other way around since the KT not only featured a much more powerful gun when it comes to punching through armor, but also thicker and most likely more durable armor.
But adding the IS-3 in any WW2 game simply wouldn't make any sense, and that simply because it never saw action during the war and infact didn't enter service until over a week after the war was officially over.