The Contemptor Savior in this context might have unique abilities. For example, it could have advanced weaponry similar to what we see in Warhammer. In a RWBY fanfic, it could use these to great effect against Salem's forces. It might also have some sort of shielding or defense mechanism that the RWBY characters could learn from to improve their own combat capabilities.
Well, this kind of fanfiction might be exploring themes that are a bit controversial. It could be that the writer wants to show a different side of the RWBY characters by putting them in a difficult situation like enslavement in the world of Total Warhammer. However, it also depends on how the author handles it. If not done carefully, it could be misinterpreted. For example, if it's too dark and doesn't have any redeeming qualities in the story, it might not be well - received by all fans.
Ruby Rose is often quite popular. Her speed and scythe - wielding skills can be very interesting when translated into the Warhammer universe. Another popular one is Yang Xiao Long, with her powerful punches and her fearless attitude. In the Warhammer context, she could be a force to be reckoned with.
One interesting concept could be the combination of RWBY's unique semblances with Warhammer's vast array of powers and races. For example, seeing a character from RWBY use their semblance in the context of a Warhammer battle. Another concept might be the exploration of how RWBY characters would adapt to the often darker and more brutal world of Warhammer.
Weiss is a bit of a snob sometimes. So she might initially be dismissive of the Warhammer fanfiction. But as she discovers the depth of its lore, she could become more interested. Blake is more of an introvert and a thinker. She would likely analyze the fanfiction from different angles, like comparing the social structures. Yang is bold and brash. She'd probably be more interested in the action - packed parts of the Warhammer fanfiction and might even want to jump right into the fray.
One idea could be to combine the unique weaponry of RWBY with the grimdark setting of Warhammer. For example, Ruby's scythe could be enchanted with some sort of Warhammer - style magic or runes. Another idea is to have the characters from RWBY face off against Warhammer - style daemons or chaos warriors. This would really test their skills and teamwork. Also, the concept of semblances could be related to the powers in the Warhammer universe in some way, like a character's semblance being a form of psychic power in the context of Warhammer.
One interesting concept could be the combination of RWBY's unique semblances with the grimdark and highly militarized setting of Warhammer 40K. For example, a character with Ruby's speed semblance might be an extremely effective scout or assassin in the 40K universe. Another concept could be the clash of the different factions in 40K with the teams from RWBY. The Imperium's strict dogma and the more free - spirited nature of RWBY characters could lead to some really engaging storylines.
They might be surprised by the complex and often dark themes in Warhammer fanfiction. RWBY characters are used to their own universe's rules and aesthetics, so the gritty and elaborate world of Warhammer could be a shock.
Another aspect is its physical presence in the RWBY world. If it's a large, imposing mech - like structure, it could change the landscape of battles. Imagine it standing in the middle of a battlefield, firing its powerful weapons at the Grimm while the RWBY characters use their own skills to support it. This would require the fanfiction writer to carefully consider how it affects the combat dynamics and the overall flow of the story.
You can try looking on some well - known fanfiction websites such as Archive of Our Own (AO3). It has a large collection of fan - created works, and there's a good chance you might find this particular fanfiction there.