Dude, most tanks at the period had only around anywhere between 8mm’s meant to tolerate machine gun fire up to something such as 25mm’s, to possibly 35mm’s. A 75mm, short or not with 50 mm that is angled mind you. So its thickness is greater even with the bolted/welded effect. hat does not change the fact that it was still well-gunned and armored for 1940. You are also comparing a tank to something that has a greater industrial capacity. Rather than other tanks from or within its period.
KV-1 was produced in 1940, and its armor varied from less than 110 to 120. Later becoming thicker. So it’s 1939 and early 1940 designs. To go back to the P40 Heavy Tank’s main gun, the 75mm could penetrate 70 mm of armor at 500 meters. Mind you 500, in-game that’s 66. However, the HEAT shell penetrates around 100 mms.
So the gun is still powerful enough to tank one down. Nevertheless, it will perform fine, against other tanks it would be fighting, however, do I believe it should be 3.3? No 3.0 at best.
Now do I think Italy shouldn’t get more heavy tanks? No, however, I do find it rather difficult to see Italy having many options for heavy Tanks that weren’t exported from other countries. Except the Hungarian Sub Tree which helps a lot.