Naruto could be a special ops agent. His agility and quick - thinking from his ninja training would make him perfect for dangerous and covert missions.
He might be a combat trainer. With his extensive combat knowledge and experience, he could teach soldiers new techniques and strategies. He could show them how to use their environment to their advantage, just like he does in his ninja battles. Also, his ability to inspire others could boost the morale of the troops he trains.
Naruto's superhuman strength and speed could make him an excellent front - line soldier. His ability to jump great heights and distances would be useful in urban combat or when crossing difficult terrains.
Perhaps it's for exploration. Naruto is always curious about the world outside. The robots can be sent to explore dangerous or uncharted areas where it might be too risky for humans to go. They can collect information and report back to Naruto.
One possible storyline could be Naruto being recruited into a special unit of the US Army. He could use his ninja skills like shadow clones for scouting or his Rasengan as a powerful weapon in combat situations against fictional threats.
One way this could work is if Naruto's world somehow merged with ours and he was drawn to the US Army's values of courage and teamwork. His ninja skills like speed and stealth could be very useful in military operations. He might also bring his strong sense of justice, which could influence the way the army operates in terms of protecting the innocent.
If Naruto were to fight an army in fanfiction, he would bring his unique skills to the battle. Naruto is known for his never - give - up attitude. So, even if the army seems large and intimidating, he would keep fighting. He could use his Uzumaki bloodline abilities, like his strong life force and large chakra reserves. Also, his ability to make friends and allies might come into play. Maybe he would convince some members of the army to switch sides. His transformation into different forms, such as the Six Paths Sage Mode, would give him an edge in combat. With his speed, he could quickly move around the battlefield and take out key targets in the army.
Well, Naruto might be a powerful combatant on one side in the clan wars in fanfiction. He could use his unique jutsu like the Rasengan and his shadow clones to fight for the cause he believes in, perhaps for the side that represents justice or the underdog clans. He may also inspire his clanmates with his never - give - up attitude.
A Naruto mercenary in a RWBY fanfiction could be a wild card. They might be a hired gun for the bad guys, causing trouble for the RWBY team. Or they could be a lone wolf who ends up helping the heroes when it suits their own goals. Their role could also be that of a teacher, sharing Naruto - style combat knowledge with the RWBY characters.
He could be a sort of outsider who comes in and shakes up the status quo. Naruto's unique powers would make him a force to be reckoned with. He might initially be confused by the different rules and power systems in Highschool DxD but quickly adapt. For example, he could use his shadow clones to gather information about the different groups and their motives. And his positive attitude could inspire some of the characters in the Highschool DxD universe to change their ways.
She could be a mysterious visitor. For example, she might appear in Konoha and immediately draw the attention of all the villagers with her unique appearance. Some might be suspicious of her, while others, like Naruto, would be curious and want to befriend her.
Some common themes could be Naruto characters adapting to the US Army's discipline. For example, Naruto's determination in the Naruto world might translate to his eagerness to succeed in military training. Another theme could be teamwork. In Naruto, teamwork among the ninja squads is crucial, and in a US Army - Naruto fanfic, it could be about how Naruto and his friends from the series work together with US Army soldiers on missions. Also, there might be a theme of cultural clash, as the ninja culture from Naruto meets the military culture of the US Army.