Koenig and Vassili smoke several times, while Tania and Koulikov smoke once, while some miscellaneous characters also smoke. We hear that the Germans killed Tania's parents, while Koenig briefly mentions that his son died in the war. Snipers, their role in the military, and the psychological effects that practicing such violence must have on them. As the young and scared Russian soldiers arrive outside Stalingrad and must travel across a river to get into the city, various explosives land all around them, hitting one boat and destroying it, killing or injuring those on board. German fighters then repeatedly strafe the boats, killing many people with their machine gun fire and destroying more boats.
Russian officers shoot and kill their own men who jump overboard to get away from the strafing runs.
Russian soldiers try to rush a German stronghold, with most of them being shot and mowed down by machine gun fire and killed by various explosions. The Russians shoot and kill their own men who are trying to retreat from the front line. German soldiers then come looking for him, firing their machine guns into a pile of bodies in which they think he's hiding. After Khrushchev gives a Russian officer a handgun to kill himself over his military failure in the city, we wait knowing that we'll eventually hear the off-camera gunshot, which we do. Vassili shoots and presumably kills a German sniper.