And the Panther could take out T-34s from 3km away. KVs were easily defeated by Panzer IVs and StuGs from a km. Yet that´s not ingame.
85mms defeating KTs now? Maybe from the sides, definitely not from the front. Even Panthers with almost half the armor bounced 85mm without a problem. You are maybe referring to a Russian testing, where they would shoot some hundreds of shells on a plate until it succumbs.
In this game Russian armor gets off pretty well considering the disastrous losses they actually took. Losses so high that they would totally cripple the tank arm of any other nation.
OMFG, how did the Soviets manage to take Berlin then? Oh wait, the German's had maybe 1500 AFV's of all types to defend Berlin. The Soviets had 4x that, and the rest of the Allies had probably 40x that many AFV's making popcorn and watching from a safe distance. So who suffered "disastrous" losses? You're cherry picking historical arguments. There were 600 Tiger II's made vers 54,000 T34's (all types). Since you like historical arguments, change the cost and pop cap of the T34 to 1/90 of a Tiger II (8 manpower and 3 fuel, 1 pop cap), make half or more of the Tiger II's break down before they come into the field of battle, and then make some of the remainder run out of gas during play.
Make those changes and you'll never hear a Soviet player complain again, or simply stop with the "historical" arguments that somehow try to make the loser of both World Wars into an army of super heroes.
Here is an actual (albeit atypical) engagement of 3 T34/85's vs 3 KT's. Try to duplicate this in COH2.
http://www.warrelics.eu/forum/history-research-third-reich-ww2/3-king-tigers-vs-t-34-85-a-272607/