I feel I should clarify that Eugene saw who was responsible for the friendly fire but did not kill anyone, himself, lol. The bunker moment always sticks out to me—not least because seeing a flamethrower in use (even just on-screen) is absolutely horrifying.

Ah, I didn't realize that. And yes, I can see why the flamethrowers were needed but it's definitely sickening to think about. I'm glad the Allied troops shot men leaving them on fire because better that than to continue burning.

One of many things, I imagine, that forms that mental strain. The smell of those battlefields must have been horrific.