The Arbiter and Thor. Thor is a powerful Asgardian with his hammer and lightning powers, while the Arbiter is a skilled warrior from the Halo universe. They could fight side by side against a common enemy. Their different cultures and fighting styles would make for an exciting combination. Maybe Thor could teach the Arbiter about magic, and the Arbiter could show Thor some unique Covenant combat techniques.
If Cortana were to be in the Marvel universe, her intelligence could be a huge asset. She could potentially interface with Vision's mindstone or help Stark with his technology. Her ability to control and analyze large amounts of data could be very useful in battles against villains like Ultron.
One idea could be that Master Chief gets transported to the Marvel universe. He teams up with the Avengers to fight a common enemy like Thanos who has somehow obtained Covenant technology. His Spartan abilities would be a great addition to the team.
One plot idea could be Master Chief getting transported to the Marvel Universe. He could team up with the Avengers to fight a common threat like Thanos. His advanced combat skills and Spartan armor would add a new dynamic to the team. Maybe he'd be initially distrusted, but prove his worth in battle.
It's hard to say, but Thor could be a really powerful character in a Halo x Marvel crossover. He has his godly powers, like control over lightning and super strength. In the Halo universe, not many things can stand up to his power. He could easily take on Covenant forces or even some of the Flood with his hammer Mjolnir.
Maybe in the fanfiction, Cortana could be integrated into Iron Man's suit. Her advanced AI could enhance the suit's capabilities even further. And they could work together to take on a new villain that is causing chaos in both the Halo and Marvel worlds. It would be a great mix of science - fiction elements from both universes.
Another interesting concept is the Flood from Halo infecting some of the Marvel characters. This would force the heroes to find a way to stop the spread of the Flood, which is a very different kind of threat compared to what they usually face. They might have to work with UNSC scientists and soldiers to develop a cure or a way to contain the Flood.
A 'halo mlp crossover fanfic' is a fan - made story that brings together the Halo and MLP franchises. Fans create these crossovers to explore new and exciting scenarios. It could be a story where the Covenant from Halo encounters the Equestrian races of MLP. There could be all kinds of plotlines, such as a team - up between Spartan soldiers and the ponies to fight a common enemy, or a story where the magical elements of MLP affect the Halo universe's power dynamics. These fanfics are a great way for fans to express their creativity and love for both franchises.
Another good pairing could be Spartan Locke and Black Widow. Locke is a skilled and stealthy Spartan, and Black Widow is a master spy. They could work together on covert missions, sharing their skills in combat and infiltration. For example, Locke could provide the muscle and high - tech support while Black Widow uses her espionage skills to gather intelligence.
Definitely Loki. He's a fan favorite and can easily fit into various crossovers. His mischievous nature can add a lot of twists to a story. For example, if he were to cross paths with the Fantastic Four, he could play all sorts of mind games with Reed Richards while also being intrigued by Sue Storm's powers.