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.
You could also make an OC who is a merchant. This OC could travel between the different settlements in Fallout New Vegas, trading rare items from RWBY's world like Dust. They would have to deal with the various factions and their different laws regarding trade, all while trying to keep their true origin a secret to avoid unwanted attention.
A plot idea could be that the Courier discovers a powerful relic in the Fallout world that has the power to connect different universes. This relic accidentally transports the Courier and some of the key RWBY characters to a strange in - between realm. In this realm, they have to work together to find a way back to their respective worlds while also facing challenges that are a mix of both Fallout and RWBY elements, like Grimm - like creatures with post - apocalyptic mutations and bandits with Dust - powered weapons.
One idea could be creating an OC who is a former NCR soldier turned bounty hunter. They could have a complex backstory of disillusionment with the NCR's politics and find a new purpose in tracking down dangerous criminals in the Mojave Wasteland.
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.
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.
A plot could involve a group of settlers from Fallout 3 trying to make a new start in the Mojave. They run into trouble with the various factions in New Vegas. Meanwhile, a character from New Vegas goes to the Capital Wasteland to learn about their different ways of survival. This leads to an exchange of ideas and technology between the two groups, as well as some clashes due to different values.
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.
You could write a fanfic about the origin of one of the factions in Fallout New Vegas. Let's say the Powder Gangers. Maybe they were once just a group of miners who were mistreated and decided to take up arms. Show how their ideology evolved from a simple quest for justice to the more chaotic and violent group we see in the game.
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.
Finding Fallout New Vegas OP OC and RWBY fanfiction can be an exciting adventure. In Fallout New Vegas fanfiction, an OP OC could be a character with superhuman combat skills or an ability to manipulate the game's mechanics in a unique way. For RWBY, an OP OC might have a powerful semblance or unique weapon. When it comes to crossovers, some fanfictions might bring the post - apocalyptic world of Fallout New Vegas into the colorful and action - packed world of RWBY, or vice versa. It's all about the creativity of the authors. Try following some well - known fanfiction writers in both fandoms as they might create such crossover works or at least recommend others who do.