USSR gave little to no crap for live of their soldiers and citizens, especially during early stages of the war. Actually in campaign the whole SOV power structure was portraited as evil, not the soldiers. But Relic, instead of investing time learning history and facts, they invested time in watching "Enemy at the Gates"... So they pretty much did a disservice to how actually violent USSR was by painting it as simple dumb evil.
they obviously gave a shit their own people, asides from the virtue of fighting a war for their entire existence, examples like the siege of leningrad and many other evacuation attempts show that they did care. their military actions in the early war were acts of desperation to stop an enemy who exploited the incredible blunders of the early red army.
showing brutality and cruelty of a regime is fine, they did fucked up shit, fucked up in the war and so on. But, the campaign does not do this, they focus on making the regime appear so evil, that they make up completely debunked and non existing scenarios, like being shot if you merely look at the commissar, being sent to battle without a rifle intentionally, you burn your own soldiers with flamethrowers, shoot them with machine guns, execute them FOR WINNING ENGAGEMENTS, no tanks no aircraft no rifles, but you win the war anyway? And also send them into fortified enemy positions without said rifle.
even funnier because they made the American troops heroic for charging into fortified machine gun positions. If you're going to make the protagonists as villains, do it right, the russians will spit on you for this campaign