Character development is often explored. For example, a character from RWBY might start as naive about the ways of the wasteland but gradually become a hardened survivor. Or a Fallout New Vegas character could be introduced to the magic and unique abilities in RWBY and have to change their perception of the world. Crossovers also tend to play with the idea of friendship and teamwork across different universes, as characters from both RWBY and Fallout New Vegas learn to work together.
One common theme is the clash of different worlds. RWBY has its own unique setting with magic and Huntsmen, while Fallout New Vegas has a post - apocalyptic wasteland. Writers often explore how characters from RWBY would adapt to the harsh environment of Fallout New Vegas. Another theme is the power struggle. In both universes, there are different factions vying for power, and fanfictions may focus on how these factions interact when combined.
Survival in a strange new world is also a common theme. RWBY characters might find themselves in the harsh wasteland of Fallout New Vegas, having to scavenge for resources and deal with the various threats. This can be used to show their growth and development as characters. Similarly, Fallout New Vegas characters could be thrown into the RWBY world and have to learn about the Grimm and the different power structures there. It creates a lot of opportunities for exciting adventures and character - building in the fanfiction.
In Fallout New Vegas OP OC and RWBY fanfiction, a frequently seen theme is the exploration of new abilities. In Fallout New Vegas, the OP OC may discover unique ways to use the game's technology or mutations, while in RWBY, it's about exploring new semblances or weapon capabilities. Another common theme is the clash of different ideologies. In Fallout New Vegas, there are many conflicting factions with different beliefs, and in RWBY, there are different schools of thought among the characters. The OP OC often has to navigate these ideological differences. Additionally, the theme of redemption can be found. An OP OC in either universe might be seeking to atone for past mistakes, whether it's in the post - apocalyptic world of Fallout New Vegas or the more fantastical world of RWBY.
Another theme is the clash of cultures. The Fallout: New Vegas world has a post - apocalyptic, survival - based culture, while RWBY has a more heroic, fantasy - based culture. In these fanfictions, we often see how the courier's values and ways of doing things contrast with those of the RWBY characters. For example, the courier might be more used to a 'every man for himself' mentality in the wastelands, while the RWBY characters are more about teamwork and heroism. This can lead to some interesting conflicts and growth for the characters.
One plot idea could be a team of RWBY characters getting teleported into the Fallout New Vegas wasteland. They'd have to adapt to the harsh environment, deal with radiation, and face off against the various factions in the game. Another could be a character from Fallout New Vegas traveling to the RWBY world and learning about the concept of Dust and Huntsmen.
One idea could be creating an OC who is a hunter from RWBY world but ends up in the Fallout New Vegas setting. They could use their unique weapon skills from RWBY, like using a scythe in combat, and adapt them to the post - apocalyptic world. Maybe they team up with some of the factions in New Vegas while also trying to find a way back home.
Many fanfictions in this crossover focus on the cultural shock aspect. The Lone Courier comes from a post - apocalyptic world full of mutants, raiders, and survival challenges. When they enter the RWBY universe, which has its own set of rules, cultures, and threats, there are a lot of opportunities for humorous and also thought - provoking interactions as the Courier tries to understand and navigate this new world.
One popular theme is the Courier's backstory. Many fanfictions explore where the Courier came from, what their life was like before the events of the game. Another common theme is post - apocalyptic relationships. This could be romantic relationships between characters in the harsh Fallout New Vegas world, or friendships that develop in the face of danger.
A more complex plot might be that there is a dimensional rift that is causing chaos in both universes. Characters from both Fallout New Vegas and RWBY have to work together to close the rift. In the process, they learn about each other's worlds, values, and fighting styles. The contrast between the post - apocalyptic technology and magic - based abilities in RWBY could lead to some really interesting interactions and story developments.
There are also fanfictions that explore the technology aspect. Since Fallout has a lot of advanced (in a post - apocalyptic way) technology and RWBY has its own Dust - based technology. The Courier could introduce some new concepts to the RWBY world, or be fascinated by the way Dust works. This can be a really cool concept to explore in fanfiction.
There's a great fanfic called 'Courier Meets RWBY'. In this story, the courier from Fallout: New Vegas somehow finds himself in the RWBY world. It has some really interesting interactions between the courier and the RWBY characters, like Ruby being super curious about his strange weapons and the courier being amazed by the Huntsmen and Huntresses. The story also does a good job of exploring how the courier's skills would translate in the RWBY universe.