I tried "Sisu." I realize you have to suspend disbelief when it's one man vs. an army. But they pushed me too far. It got me thinking about a great, often used trope in movies--the human body shield. A bullet will usually pass right thru, unless a main character needs some plot armor and then holding someone else in front of them will stop any round. Sisu employed this repeatedly. I let it go with a regular rifle or machine gun. But I just couldn't do it after many rounds from the tank mounted .50 caliber failed to pass through the human shield. Nope, done at that point.