You could write a fanfiction where the Madness Combat world intersects with another fictional universe. For instance, if some of the characters from Madness Combat ended up in a post - apocalyptic world like Fallout. This would lead to new challenges as they have to deal with different threats and environments, and it would be exciting to see how they interact with the new characters in that world.
A crossover with a cyberpunk universe would also be cool. Picture the Madness Combat guys in a neon - lit city filled with advanced technology and cybernetic enhancements. Maybe they have to battle against corporate - controlled mechs or hack into a powerful computer system.
A great idea for a Madness Combat fanfic is to set it during a time before the main events. Show how the world of Madness Combat was before all the chaos and bloodshed. It could be a story about the early days of the Nexus City and how the different factions started to form. Or you could write a fanfic that focuses on a mission that goes completely wrong for the main characters. They have to face unexpected challenges and enemies, and they have to rely on each other in new and different ways to survive.
One idea could be exploring alternate versions of the main characters. For example, a version of Doctor Strange who turned to the dark side in another universe. Another plot could involve a love story between two characters from different universes that was not possible in the main MCU timeline. Or perhaps a story where the multiverse is collapsing and the characters have to find a way to stop it by traveling through various strange and dangerous universes.
Well, you could have a story where Naruto has to fight without his chakra. This would force him to rely on his taijutsu skills and strategic thinking more. Or, there could be a fanfiction where the Akatsuki members team up with the Leaf Village to fight a common threat that endangers the entire ninja world. Also, a plot where Hinata discovers a new, hidden power within herself during a combat situation and uses it to save Naruto from a powerful enemy would be quite interesting.
A great plot for Ace Combat 3 fanfiction might be to create an alternate timeline. In this timeline, a major battle from the game was lost instead of won. This would change the entire political and military landscape of the game world. Pilots would have to deal with a much harsher reality, and new alliances would have to be formed to survive. It could also explore how the characters would change in this new situation.
One idea could be a crossover where Naruto characters are pilots in the Ace Combat universe. For example, Naruto could be a hot - headed pilot with his unique chakra - based flying skills. Another idea is that the Akatsuki members are part of a rival squadron, causing chaos in the skies. Maybe Sasuke could be a lone - wolf type pilot who has his own motives and often goes against the orders of the main squadron.
Another plot could involve a group of pilots from different nations coming together to fight a common, mysterious enemy force that doesn't belong to any known country. Their different flying styles and cultures clash at first but they learn to work together for the greater good.
A 'combat butler fanfic' could have a plot where the butler is not human, but an android created for combat and serving. His master, a young heir to a large company, discovers his true nature and they have to deal with the implications. The butler then has to fight off other androids sent by a rival company to kidnap the master. This could explore themes of identity, loyalty, and the relationship between technology and humanity. There could also be cool action scenes where the combat butler shows off his advanced combat capabilities and uses his built - in gadgets to overcome the threats.
One idea could be a story about a rookie pilot who has to overcome their fear in the heat of battle. They start off shaky but through various missions, they gain confidence and become a key asset to their squadron.
Well, there might be a story in rwby madness fanfiction where the Grimm are much more intelligent and form alliances among themselves. This would completely change the dynamic of the battles. Also, there could be a fanfic that focuses on the backstories of the minor characters, like how a random student at Beacon got there and what their dreams are.