Enemy at the Gates — Russia
Soviet sniper Vasily Zaitsev's duel with German Major Erwin König during the Battle of Stalingrad.
Vasily Zaitsev was a real Soviet sniper credited with 225 confirmed kills at Stalingrad. The sniper duel with a German expert is documented in Zaitsev's own memoirs, though historians debate the German's identity and the duel's exact details.