there is no real solid evidence that the particular battle actually took place. we know that Major Königs was killed in Stalingrad, but we dont know if it was even in a sniper battle! he was the best, so i doubt that. some historians go as far as to say that Vasilli Zaitsev was a hero made up by the Russians to feed their propaganda machine. i like that explanation the best.
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Will mir die Hand noch reichen,
Derweil ich eben lad'.
Kann dir die Hand nicht geben,
Bleib du im ew'gen Leben
Mein guter Kamerad!
Mein guter Kamerad!