One idea could be that Arthur Morgan somehow gets transported to the RWBY universe. He could use his skills as a gunslinger and survivalist to help the RWBY characters in their battles against Grimm. Maybe he teams up with Ruby and teaches her some of his unique combat techniques.
The story of Arthur Morgan in RDR2 is quite extensive. It can take a significant amount of time to complete, depending on how much you explore and engage in side activities.
Well, of course, Arthur Morgan himself is the central character since it's about being reborn as him. But often, other characters from the original game like Dutch, Hosea, and John Marston also play important roles. They interact with the reborn Arthur in different ways, sometimes being skeptical of the changes in him, other times being inspired by his new ideas.
Another plot could involve the reborn Arthur Morgan exploring parts of the game world that were not fully discovered in his first life. He could encounter new characters or hidden treasures, and this new knowledge could change his perspective on the world around him and his role in it.
Arthur Morgan could fit in as a mentor figure. His experience in combat and dealing with difficult situations would make him a great teacher for the RWBY students. For example, he could show them how to be more resourceful in the wild, which would be useful when they are on missions in less - civilized areas.
One popular storyline is about their past relationship. It might explore how they first met and fell in love. For example, a fanfiction could detail their early days in the town, with Arthur being a bit rough around the edges but Mary seeing the good in him. Another common plot is a 'what if' scenario. What if Mary had been more accepting of Arthur's outlaw life? Maybe she joins him on some of his adventures, adding a new dynamic to the gang. There are also stories that focus on their reunion after a long time apart. These can be quite emotional as they deal with their unresolved feelings and the changes they've both gone through.
The fact that they are both survivors in a tough world. In the Red Dead Redemption universe, they've both faced hardships. A fanfic can explore how they support each other, grow together, or even have conflicts based on their different experiences and personalities. This makes for a rich tapestry of stories. For example, they could go on adventures together, and we get to see how their relationship evolves during those times. It's also interesting to see how their relationship might be different from the more traditional relationships in the game. There are so many possibilities for the writer to explore different emotions, like loyalty, love, or even just mutual respect between them.
You can start by looking on fanfiction platforms like Archive of Our Own (AO3). There are often tags related to the specific characters, which can help you narrow down the search. Another option is to check out some Red Dead Redemption fan forums where fans might share their favorite fanfics.
Writers develop their characters by exploring their past traumas. For Arthur, it could be his experiences with his father or his time in prison. In fanfiction, these traumas could be a reason for him to either push Mary away or hold on to her tighter. For Mary, it could be the loss of a loved one or the pressure from her family. By delving into these, writers can make the characters more complex. Additionally, character development can occur through the relationships they form with other characters in the fanfiction. If Arthur befriends a wise old man who gives him advice about his relationship with Mary, it can lead to changes in how he approaches her.
I'm not sure who Morgan is specifically. There could be many people named Morgan. As for the story, without more context, it could be any kind of story, like a personal adventure, a fictional tale, or a historical anecdote.