One aspect of Mass Effect Andromeda x Halo fanfiction could be the crossover of characters. Imagine Shepard from Mass Effect meeting Master Chief from Halo. Their leadership styles are different but both are highly respected in their respective universes. In fanfiction, they could team up to face a common threat that combines the enemies from both games, like a new type of alien that uses both the Reaper and Covenant technology. This would create a really exciting and unique story.
Fanfiction in the Mass Effect Andromeda x Halo realm can also focus on the cultural differences. The Asari in Mass Effect have a matriarchal society, while Halo has a more militaristic and hierarchical structure. A fanfic could explore how these two cultures would interact, maybe through a diplomatic mission or a trade deal. It could also show how the different values of each universe might clash or find common ground.
One popular trope is the 'fish out of water' scenario. For example, a character from Mass Effect Andromeda suddenly finding themselves in the Halo universe or vice versa. They have to adapt to the new rules, technology, and culture. Another common trope is the 'power - up' trope. A character might gain new abilities by combining the technology or powers from both universes, like using biotics with Spartan armor enhancements. And of course, the 'enemies to allies' trope is popular too, where the normally opposing forces in each game, like the Krogan and the Covenant, have to work together against a greater evil.
Master Chief's super - soldier abilities combined with Ryder's biotic powers would be extremely powerful. Chief's physical strength, combat training, and strategic thinking, along with Ryder's ability to manipulate mass effect fields, could create a character capable of taking on the toughest enemies. For example, Chief could provide cover fire while Ryder uses biotics to lift and throw enemies.
Perhaps a crossover where the Covenant from Halo discovers the technology of the Milky Way species in Mass Effect Andromeda. This could lead to a power struggle as they attempt to either assimilate or destroy the new civilizations. The story could focus on how Ryder and his crew navigate this new intergalactic conflict while also trying to understand the motives of the Covenant.
I think it's decent. It has its moments, but it also has some flaws that keep it from being truly great.
Overall, the story of Mass Effect Andromeda is a mixed bag. It has some exciting elements and character development, but suffers from pacing issues and inconsistent writing in parts.
If Iron Man joined the Andromeda Initiative, he would bring a whole new level of expertise. His engineering skills could help in building better habitats and defenses for the colonies. He could also train the Initiative's soldiers in new combat techniques using his suit's capabilities.
Turians are often depicted as having a more rigid and formal appearance. They have a carapace - like exterior which gives them a very distinct and somewhat intimidating look. In contrast, humans have a more varied appearance. In fanfiction, this physical difference can be used to show how the two species first perceive each other. For example, Turians might initially see humans as soft or unprotected because of their lack of a carapace.
One common theme is self - discovery. The original characters often find themselves in a new and strange galaxy, and they have to figure out who they are and what their place is. For example, an OC might start as a loner but learn to be part of a team.
One great crossover might involve the Ryder family from Mass Effect Andromeda somehow ending up in the Naruto universe. They could team up with Naruto and his friends to fight against a common enemy, like an ancient, powerful jutsu - created creature that threatens both the shinobi world and the new galaxy in Andromeda. The different powers and technologies from both universes would make for an interesting combination.
One interesting Mass Effect Andromeda fanfiction could be about Ryder's further adventures in uncharted regions of Andromeda. Maybe they discover a new alien species that has a unique culture and technology. Another could focus on the relationships between the different crew members on the Tempest, like a deeper exploration of the friendship or potential romance between two characters.