He could be a hero. He might use his alchemy to save more lives than he did in the original story, perhaps finding ways to heal the wounded more effectively or stop the fighting faster.
The way the crossover is handled is crucial. If it's a crossover with a modern - day setting, how does Roy Mustang adapt? Does he stand out too much or does he fit in? Also, the interactions between him and the new characters should be believable. For instance, if he meets superheroes, their powers and his alchemy should interact in a logical way that makes the story enjoyable.
Well, one possibility is that Roy Mustang could use his alchemic skills in new and unexpected ways during the Ishval War in the fanfiction. Maybe he'd form alliances with characters he wouldn't normally interact with in the original story. He could also face moral dilemmas that test his character even more than in the canon story.
One great Roy Mustang crossover fanfiction is 'Roy Mustang in Another World'. It combines his character with an alternate universe setting, creating a really interesting story. In it, Roy has to adapt to new rules and powers, which makes for an exciting read.
Yes, there might be some. Fanfiction is a vast world where different universes can be mashed up. Writers often like to combine characters from different series, like Naruto and Roy Mustang from Fullmetal Alchemist. You can try searching on popular fanfiction websites.
At first, Edward might be a bit resistant to Roy's attempts at adoption. But as time goes on, Roy shows his care and concern for Edward. He helps Edward with his problems, like dealing with the homunculi or his own self - doubt. Edward then starts to rely on Roy more, and their relationship deepens into a strong bond of family - like love.
I'm not sure if there is a specific 'Harry Potter is Roy Mustang fanfiction' out there. These are two very different fictional universes, so it would be a rather strange and creative crossover. You might have to do a very thorough search on various fanfiction platforms to find out.
One common theme is power and ambition. Since Roy Mustang is a character associated with power (his fire alchemy) and his ambition to rise in the military, many OCs are created to either complement or contrast with that. For example, an OC might have a power that can either enhance or hinder Mustang's own power, and their interactions revolve around how they deal with power dynamics.
One great 'Edward Elric Roy Mustang Fanfiction' is 'The Alchemist's Bond'. It beautifully weaves the relationship between Edward and Roy Mustang. The story has an engaging plot where they have to team up against a new threat in the world of alchemy. The characterizations are on point, staying true to their original personalities from the series.
Female Roy Mustang fanfiction is unique because it can offer a fresh take on his character. For instance, it could explore his vulnerability from a female perspective, which might not be as prominent in the main story. It can also create unique relationships between him and female characters, whether it's a friendship, a mentorship, or a romantic relationship. These fanfictions can also delve into how his actions and decisions impact female characters in ways that add depth to the overall story.