Sorry I meant thousands of American trucks (not troops) were used to launch Katyushas.
A red army with 28,000 tanks and planes was swept aside in Barbarossa by 3,600 German tanks and planes, in large part because the Germans destroyed trucks, trains, etc, so the red tanks and planes couldn't fight without fuel and ammo.
German and Soviet armor in the eastern front:
June 1941 3,671 German, 28,800 Soviet, March 1942 1,503 German, 4,690 Soviet, May 1942 3,981 German, 6,190 Soviet, Nov 1942 3,133 German, 4,940 Soviet (the smallest difference during the war). By March 1943 the war was lost: 2,374 German, 7,200 Soviet, the Soviets had air, artillery and troop superiority also.
As you can see in Nov 1942 (Stalingrad) Stalin had nearly the same number of tanks as Hitler (despite Germanyfighting in Africa). Moreover, supplying the few Soviet tanks and battered troops was quite difficult since there were very few trucks, trains and even horses left in the much reduced USSR and Soviet production was very low after hurriedly relocating from the Ukraine and western Russia what was not lost to the Urals.
Just during the last quarter of 1942 (during the battle of Stalingrad), Stalin received 350,000 tons of steel, 250.000 tons of aviation fuel, 60,000 trucks, 11,000 jeeps, 2 million boots, 50,000 tons of explosives, 300 Airacobras, etc, At the same time the Allies disembarked in North Africa, forcing Hitler to relocate troops, tanks and planes from the USSR. The reduced strength of the Luftwaffe in Stalingrad allowed the Soviets to gain air superiority over Stalingrad and to move troops from the eastern side of the Volga and finish off the German army, which could not be supplied by air, because of the Soviet air superiority, the bad weather and the lack of Ju-52s (many of which were also sent to Africa and promptly lost there). [/QUOTE
Wrong figures and wrong arguments ]