Maybe if you actually studied history you would've figured out you dont need any of those things when you have overwhelming advantage in numbers and quality of armored vehicles by the of the war
Excellence in all artillery, plus the Germans, the best supplier of the Red Army, in the battle for Berlin, one Soviet infantry brigade of 4,000 had 3,000 Panzerfaust. The Germans didn’t even have so many tanks, they were used for shooting at buildings. In 1944 and 1945, when the Germans massively used grenade launchers, they were not critical for the Soviets, the Soviets attacked. It was critical for the Germans.