Who could be the main characters in a 'Mass Effect Earth Abandoned Crossover Fanfiction'?

One possibility could be that the races from Mass Effect come to the now - abandoned Earth and start exploring the ruins. They might find remnants of human technology and culture that could change their understanding of the humans. For example, they could discover old military bases with advanced weaponry blueprints that could be used in their own conflicts.

Shepard from Mass Effect could be a main character. They could lead the XCOM forces in a joint mission against a common enemy. Their leadership skills would be very useful in coordinating the two very different groups.

Shepard could be a main character. Given their experience in uniting different species and facing great threats, they would be a natural fit in a world war scenario. They could lead a coalition against a new enemy.

Shepard could be one of the main characters. Imagine Shepard having to deal with Venom's presence. Shepard's leadership skills would be put to the test as they try to figure out if Venom is a threat or an ally. Also, Garrus could be involved. His combat skills and loyalty to Shepard would make for some interesting interactions with Venom.

Shepard could be an interesting character to be part of a harem. Their leadership skills and heroic status would make for an interesting dynamic within a harem. Liara T'Soni is also a great candidate. Her knowledge as an asari and her relationship with Shepard in the original games could be expanded upon in a harem scenario. Garrus Vakarian too, with his loyalty and combat skills, could add a different dimension to the harem.

Master Chief from Halo is an obvious choice. His super - soldier skills and stoic nature would be really interesting to see in the Mass Effect universe. Another one could be Commander Shepard from Mass Effect. Putting Shepard in the middle of a Halo - style conflict would be exciting. And Cortana, the AI from Halo, could also play a major role. Her intelligence and relationship with Master Chief could be explored in new ways when combined with the Mass Effect elements.

There might be a human scientist who is at the forefront of some revolutionary discovery. This character could be trying to unlock the secrets of an ancient alien technology that has the potential to change the course of humanity's future in the fanfiction.

It could be a mix of characters from both universes. There might be classic WW2 soldiers like Patton or Eisenhower, but with a Mass Effect twist. Maybe they have some kind of exposure to Mass Effect technology that gives them special abilities. Also, there could be Mass Effect characters like Shepard who are somehow transported to the WW2 era.

Obviously, Tevos is a main character. She's a significant figure in the Asari government. And then there are the OCs (original characters). These can be a wide variety of beings. It could be a human soldier who gets involved in Asari politics because of some incident related to Tevos. Or an alien scientist who teams up with Tevos to study an ancient Prothean relic. Each OC brings their own backstory, skills, and motives to the story.

Well, it could be about Ben using his alien forms to fight alongside the Mass Effect characters against a common enemy like the Reapers. Maybe his Four Arms form could be used for brute strength in hand - to - hand combat with the husks.