It’s kind of an interesting question how you’d model the hit probability for gaming purposes though, and I’d be interested in how people have done it, and why. I think it’s got to be very tempting to just say “unsighted fire has a 30% chance to hit inside 25 yards” in my game, because I said so. I’m kind of impressed at the idea, and a bit sorry that I don’t have that kind of data to share.