Add in North Africa, Romania, Sicily, Greece, the North Atlantic war, losing the Battle of Britain, Lend Lease, the fight against Japan, China's role and the Western role in supporting China....
While I agree too many Westerners are ignorant of the SU's role in WW2, too many Slavaboos/Magaheads (and all Russians) completely overstate their role, and actively deny that Russia's massive losses were due in large part to 1) individuals are worth nothing 2) the purge of the Red Army officer corps before the war 3) The Molotov pact with Germany 4) Russia's foolish lack of preparation for war.