I’m going to have to fall to the side of the USSR always being a weak player. In WWII they wasted millions of lives primarily because they were technically and tactically incompetent. Had the Germans been even slightly skilled at logistics (and not had a nut in charge of strategy) the war would have been an entirely different affair - although the outcome would have remained the same. After the creation of NATO the Soviets never stood a chance. They were (and remain) weak at the use of air power and their command system has always been too rigid to allow for the independence of most NATO units. As I have mentioned before, the Soviets had remarkable artillery capability that relied on mass rather than accuracy - but artillery alone isn’t enough.