He was what the word "hero" meant before it became a catch phrase for anyone who survives adversity.
Of course we still have many true heroes today but the word has lost much of its true meaning through overuse.
Audie's company had been calling in artillery when they had to fall back. Audie could have retreated with the others but he saw many of his fellow soldiers were still pinned down by enemy fire. He climbed onto a burning tank and manned the machinegun laying down cover fire while leaving himself totally exposed on a tank that might well explode at any second. He prevented the Germans from encircling his company killing roughly 50 German soldiers in the process.
During his service its estimated that he killed around 250 enemy troops.
Audie had a film career after the war staring in 44 movies, mostly westerns.