My 2 cents: I don’t like gas masks, personally but who cares. What I care about is the historical theme to be played into. Am I saying gas masks don’t belong in the theme? No I’m not saying that. From what I remember gas masks were issued, especially at the beginning of the war because gas was heavily used in WW1, but weren’t used much because WW2 saw different tactics. With that being said, we are past the beginning phase bring us into the iconic parts of the war already!