Real M9 Vietnam-era flamethrower compared to Not-a-Flamethrower.
The name is appropriate! The big one can only fire for a few seconds, though.
On a semi-related note – flamethrowers aren’t supposed to burn you to death. I mean, they can, and that’s how people initially conceived of them, but that’s not how they kill people in bunkers behind walls you can’t spray fire at.
But the smoke gets everywhere, and there’s never enough pure air in bunkers to begin with. When taking bunkers, they’ve found people dead hundreds of feet down adjacent tunnel networks who never even saw the flame – or even the smoke – but they received a terminal case of carbon monoxide poisoning. Flame throwers are chemical weapons.