Having found yourself in a war...

But that's wrong. Such orders would not be given to infantry. Those who want to will shoot on their own, those who refuse will not be forced, because these are infantry. They are already expendable, and there is always a special attitude towards them. And a commander who gives such orders risks being shot on the spot by his own soldiers, or simply losing a significant portion of the soldiers under his command, and he cannot do anything about it. Such tasks are always given only to those who agree to them; the rest are not touched.
And giving such an order to tankers is foolish. They have a different task in battle, and ordering them to shoot at civilians is, firstly, a waste of expensive shells, and secondly, it's like ordering them to kill a dung beetle with an RPG.

Stalingrad was subjected to daily raids by German aircraft. In the burning city, workers' detachments, medical units, and fire brigades selflessly worked, providing assistance to the affected population. Evacuation took place in extremely difficult conditions. German pilots bombed the crossings and the embankment especially cruelly.

The evacuation of the population to the left bank was carried out by ships of the Stalingrad River Fleet and the Volga Military Flotilla under continuous bombardment. The German command, angered by the disruption of its plans, ordered the pilots to spare no one, even civilians. Thus, in the area of Staritsa on August 8, a passenger steamer "Kommunistka" hit a mine and sank. Of the 400 passengers, only 80 were rescued. But the most tragic event on the Volga was the death of the steamer "Iosif Stalin" (Captain I.S. Rachkov). On the night of August 27, taking advantage of the fog, three ships - "Paris Commune", "Mikhail Kalinin" and "Iosif Stalin", taking passengers, began to break through up the Volga. The last one was delayed in leaving, waiting for the late passengers. Near Akatovka, slightly north of Latoshinka, the first two steamers were fired upon from the shore by German-fascist troops, but they passed through. And the "Iosif Stalin", which was following them, ran aground and became an easy target for German tankers from the 14th Tank Corps. The cries and moans of women and children did not become an obstacle for them to complete the crime. Of the 1200 passengers and crew members, only a little more than 200 were rescued!

Yes, that's right. That's exactly how it was. If, of course, you have heard about the "cold" war.