One interesting story could be where Cinder from RWBY somehow ends up in the Halo universe and has to adapt to its technology and combat styles. Maybe she teams up with some Halo characters to fight a common enemy.
In some 'rwby cinder and halo fanfiction', Cinder could be a sort of wildcard in the Halo universe. She may start off as an antagonist to both the UNSC and the Covenant, but as the story progresses, she realizes she needs to ally with one side to survive. This could lead to a complex story of alliances and betrayals.
Cinder might become more adaptable. In the RWBY world, she is used to a certain set of rules and powers. But in the Halo universe, she has to quickly learn new things. So she could become more open - minded about different ways of fighting and surviving.
One interesting plot could be Ozpin secretly training to counter Cinder's powers. He might be gathering ancient knowledge and artifacts to gain an edge.
One interesting concept could be the exploration of their opposing natures. Ruby is often seen as pure - hearted and full of hope, while Cinder is more devious and power - hungry. In fanfiction, this contrast can lead to some intense character - driven stories where they either learn from each other or clash in more complex ways than in the original series.
One interesting 'rwby halo fanfic' could be about the characters from RWBY finding themselves in the Halo universe and having to adapt to the new technology and combat styles. For example, Ruby could be fascinated by the energy swords and try to incorporate their use into her own fighting style.
Well, one possible plotline could be Ruby and Cinder being forced to team up in an unexpected situation. Maybe they have to face a common enemy that is far more powerful than either of them alone.
One possible storyline could be a redemption arc for Cinder through her relationship with Pyrrha. Maybe in an alternate universe, Cinder realizes the error of her ways and Pyrrha helps her to change. They could start as enemies but gradually come to understand each other.
One idea could be Cinder being transported to an alternate universe within the RWBY world where the roles are reversed. For example, she could find herself in a world where she is a huntress in training, facing the same challenges as the main characters but from a different perspective. Another plot could involve a team - up between Cinder and a group of RWBY characters against a common, greater enemy that threatens both their goals and the world. Maybe a new, powerful Grimm that has abilities they've never seen before.
Well, in 'royal blue cinder rwby fanfiction', the 'royal blue' part might symbolize something special. Maybe it's related to a new power or a hidden aspect of Cinder's character. It could also be about a new setting or a group within the RWBY universe that has a connection to this royal blue concept and Cinder.
In this type of fanfiction, the concept of mixing the grittier, more militaristic feel of Halo with RWBY's more fantastical elements is really engaging. We could see UNSC soldiers trying to adapt to the Grimm - filled world of Remnant. And perhaps the characters from RWBY learning about the Forerunners and their technology. It could open up a world of possibilities for epic battles, new friendships, and the exploration of different values and ethics from both universes.
Perhaps a crossover where Master Chief and Ruby Rose meet. They could exchange their combat experiences. Ruby could be amazed by Master Chief's Spartan enhancements and weaponry, while Master Chief might be intrigued by Ruby's Silver - eyed power. They could then go on a mission together, with Ruby's speed and scythe - wielding skills complementing Master Chief's brute force and strategic thinking.