One possible plot could be that the RWBY characters find themselves in the Fallout wasteland. Ruby could use her scythe skills to fight off the mutated creatures in the wasteland. Weiss might struggle with the harsh and dirty environment compared to her usual posh settings but use her glyphs in unique ways against raiders. Blake could use her stealth to navigate dangerous areas, and Yang's strength would be useful in hand - to - hand combat with the tough Fallout foes.
One idea could be that the characters from RWBY end up in the Fallout wasteland. Ruby could use her scythe skills to fight off raiders and mutants. Weiss might use her glyphs to protect the group from radiation in certain areas. Another idea is that the Dust from RWBY could be a valuable resource in the Fallout world, leading to various power struggles.
Ruby would probably be excited by the new and different kinds of challenges in the Fallout world. She'd quickly learn to use the weapons she finds there while still relying on her Crescent Rose. Weiss would have a harder time adapting to the dirt and grime, but her determination would make her find ways to use her magic in this new environment. Blake would likely be more at ease in the shadows of the ruined buildings, using her stealth to her advantage.
Ruby would be very interesting. Her innocent and eager - to - help nature would be a contrast to the desolate and often cruel Fallout world. She'd likely be the one to immediately try to make things better, whether it's helping a settlement or fighting against the bad guys. Her speed and combat skills with her scythe would also make her a force to be reckoned with in the wasteland.
One idea could be that the RWBY characters find themselves in the Fallout wasteland. Ruby could use her Crescent Rose to fend off mutants. Weiss might struggle with the harsh and dirty environment compared to her usual clean Atlesian surroundings. Blake could use her stealth skills to navigate dangerous areas, and Yang's strength would be useful in combat against raiders. They could be on a quest to find a way back to their own world while also trying to make the wasteland a better place.
Ruby would be really interesting. Her innocent and positive attitude would contrast greatly with the dark and desolate Fallout world. She'd be like a ray of hope in the wasteland. Her scythe - fighting skills would also be unique and useful against the various threats in Fallout. She might try to befriend some of the mutants or ghouls, seeing them not as just monsters but as living beings who need help.
When writing these crossovers, pacing can be an issue. Since you're combining two different settings and storylines, you need to find a good rhythm. For instance, if you're doing a Fallout and Final Fantasy crossover, the more fast - paced action of Fallout and the often slower, more story - driven parts of Final Fantasy need to be blended well. And then there's the matter of making the crossover seem believable to the readers who are fans of both universes.
RWBY's reactions could vary greatly. Yang would probably be excited about the action - packed parts of the fanfiction. She loves a good fight, and Fallout often has intense combat scenes. Ruby would be drawn to the unique characters, especially those with special powers or abilities. Weiss might be more interested in the social hierarchies and how they function in the Fallout world. And Blake could be thinking about how the stories in the fanfiction could be used to teach lessons about coexistence and conflict resolution in her own world.
One idea could be a crossover where characters from Fallout enter the RWBY universe. For example, a Vault Dweller could end up in Vale and have to adapt to the Grimm - filled world while also trying to find a way back home. Another could be a story where RWBY characters are thrown into a post - apocalyptic setting like in Fallout, dealing with radiation and mutated creatures.
The Mask's influence on the RWBY world might also change the appearance of things. If Weiss were to encounter the Mask, it could transform the elegant and icy settings she's used to into something more zany. The ice sculptures in her family's manor could start dancing around like in a wacky cartoon. And the Grimm, the dark creatures in RWBY, might react in strange ways to the presence of the Mask - perhaps they would be both terrified and strangely attracted to it at the same time.