Some fanfictions create alternate universes. In one such AU, the team fortress 2 world could be a post - apocalyptic setting. The characters would have to adapt their skills and weapons to this new, harsher environment. It would be a really cool exploration of how their abilities and relationships change in this different scenario.
One idea could be creating an OC (Original Character) who is a new recruit to one of the teams and has to prove themselves. Another is an OC that has a special ability that changes the dynamic of the battles. For example, an OC with the power to manipulate time for a short period during a fight.
One interesting concept could be a crossover with other Valve games. For example, characters from Half - Life might find themselves in the Team Fortress 2 universe. They could interact with the TF2 characters in unique ways, like Gordon Freeman teaming up with the Heavy to fight off some common enemy. Another concept could be a crossover with a popular anime. Picture the TF2 characters in the world of Naruto, learning ninjutsu skills and having to deal with the shinobi politics. A third concept might be a crossover with a classic horror game. The TF2 mercenaries having to face off against the likes of Pyramid Head from Silent Hill in a spooky, fog - filled map.
One interesting crossover could be the characters from RWBY using the unique weapons and abilities of Team Fortress 2 characters. For example, Ruby could potentially use the Scout's speed to enhance her own combat style. Another aspect could be the settings. Imagine the RWBY characters in the TF2 maps, fighting against the TF2 villains or teaming up with the TF2 mercenaries. There could also be some fun interactions in terms of character personalities. Weiss might be exasperated by the more rowdy TF2 characters like the Soldier or Demoman, while Yang could find common ground with their bravado.
One plot could be that a powerful artifact has been discovered that has the potential to change the balance of power in both the Overwatch and Team Fortress 2 universes. Characters from both sides start to hunt for it. There could be double - crosses and alliances formed along the way. The Soldier: 76 from Overwatch might initially see the Red Team from Team Fortress 2 as enemies, but as they realize they have a common goal, they start to work together. Meanwhile, the Sniper from Team Fortress 2 could be in a sniping competition with Widowmaker from Overwatch as they also search for the artifact. This would create a mix of competition and cooperation in the story.
One interesting fanfiction could be about the characters from Harry Potter magically ending up in the world of Team Fortress 2 and having to adapt to its wacky combat and different classes. For example, Harry could be like a Scout, using his speed to outmaneuver enemies.
Well, a cool concept in Team Fortress 2 crossover fanfic is the cultural exchange aspect. Imagine the TF2 characters in a setting inspired by a different culture, like a feudal Japanese - style world. The Heavy could be a samurai - like figure, and his minigun could be some sort of super - powered traditional weapon. Also, the idea of TF2 characters interacting with different species from other fictional universes is great. Maybe the Medic could be studying the biology of some alien creatures in a crossover.
One sad story might be that a pyro, who was always seen as a bit of an outcast because of his unusual fighting style, was never really accepted by the rest of the team. He just wanted to be part of the group and help, but was constantly pushed away, which made him really sad.
The back story of Team Fortress 2 is quite complex. It's centered around two feuding factions, RED and BLU. Each of the classes has been carefully crafted with their own origin stories. The Engineer is a Texan who can build all sorts of useful structures. The Medic is from Germany and has his strange yet interesting medical practices. There are also backstories related to how these classes interact with each other. Some have rivalries, like the Soldier and the Demoman. It's a world full of action, humor, and a lot of gun - shooting mayhem.
One great 'Team Fortress 2 Fanfic' is 'The Mercs' New Adventure'. It has an interesting plot where the characters go on a mission in an unexpected location. Another good one could be 'A Day in the Life of a Medic' which gives a detailed look into the daily routine of the Medic character. And 'The Secret of the Engineer's Workshop' is also popular as it reveals some hidden secrets about the Engineer.
One common theme is her skill and how she got it. Many fanfictions explore her training days or how she developed her sharp - shooting skills.