To be the historian here, only 1/10 of the 13th Guards Division (which your part of in the game) didn't recieve weapons before landing at the west bank of the Volga, which is still a pretty high number. The lack of supplies had more to do with the rush to send reinforcements to Stalingrad, rather than a just plain lack of weapons. Those NKVD commisar bastards were just as bad in the actual battle though. Another thing many forget is that the battle wasen't won in the end by the street fighting, but by Operation Uranus, the encirclement of the Germans outside Stalingrad. Infact, very little reinforcements were sent to Stalingrad after the first big rush. Most of it went to the forces that were to encircle the German Sixth Army.