Seems there are fires, but im questioning the coding re the frequency. I have seen a LOT of a/c go down in the WW1 Arena at this point, and maybe one? that was on fire, despite seeing many fuel tank hits, ect. All the bullets my own crates have taken, not a single fire so far. I just run out of gas. Even the self sealing tanks in the WW2 a/c in AH do catch fire, and I think the WW1 planes catch fire even less than those despite having no self sealing tanks or armor.