Re: Ring of Fire - Fantasy Hero style
Easy to run, and I've played several such campaigns myself. You do have to watch out for players' overestimation of their own knowledge, though. It's one thing to know that gunpowder is made of sulfur, saltpeter, and charcoal. It's quite another to locate them, prepare them, and mix it together without blowing yourself up.
What's really fun is dropping soft modern American civilians into a fantasy campaign. Realistically, we'd be hard pressed to bring down a FH kobold.