We can see here are such photo chronicles:
They seem to me reliable. Because they are made in a quiet environment, without the risk for the photographer to get under a crazy bullet. We are all human beings, we are all human beings, and nobody wants to die. And it is quite consistent with the attitude toward the man in the Red Army: their artillery guns are rolled by hand. And in the foreground of the elderly is a man in Red Army uniform, stripped, fatally tired and skinny ... But here are the frames of attacks, fraternisation of the parts of the Red Army meeting on the battlefield in fact 95% staged. For the sake of justice I note that this was not only in the USSR, but also in Germany, too.