Well, perhaps in this fanfiction, Shield Tris is being misinformed. She might believe that Harry is in possession of something extremely valuable, like a powerful magical artifact. So, in her mind, kidnapping Harry is the only way to get that item. It could also be that she's part of a group that has a radical ideology and they see Harry as a threat to their plans, so they order her to kidnap him.
In this fanfiction, Harry's reaction could be a mix of fear and determination. He has faced many dangerous situations before, but being kidnapped is a new threat. He might initially be afraid, but then his Gryffindor courage kicks in. He could try to outwit Shield Tris. Maybe he pretends to be compliant at first, but then uses a clever spell or trick to turn the tables on her. He could also try to use his knowledge of the wizarding world and its hidden passages to evade her.
Well, it could be a symbol of protection. In the wizarding world, Harry has faced many dangers. Owning a shield might represent his need to defend himself against the Dark Arts and his enemies, like Voldemort. Maybe it gives him an extra layer of security during battles or when exploring dangerous places.
Maybe Voldemort's old followers who are still up to no good. They might think that by getting Harry to kidnap Muggles, they can bring back the dark days under Voldemort's rule. They could be using some sort of dark magic to influence Harry's actions.
Yes, there are likely such fanfictions. Writers often explore how Harry's magical abilities would interact with the high - tech and secretive world of SHIELD. For example, his magic could be used for covert operations, like magically disguising agents or getting past security systems that normal technology can't bypass. It makes for an interesting crossover as the two universes have different power systems and cultures.
I'm not aware of any such fanfiction that can be considered appropriate given the disturbing nature of the themes. Fanfiction should generally promote positive and healthy ideas, and the concepts of kidnap and abuse are not acceptable in that regard.
One idea could be that Harry is under a dark spell that makes him kidnap Muggles, but then his friends try to break the spell and save him and the Muggles. Another could be that it's a case of mistaken identity and Harry is wrongly accused of kidnapping Muggles when he was actually trying to protect them from a real threat. Maybe in the fanfiction, Harry kidnaps Muggles to show the wizarding world how wrongly Muggles are treated by some wizards.
Well, 'OP' in the context of this 'Fury Tries to Kidnap OP Harry Potter Fanfiction' could be the main character that Fury is targeting because of their special powers. Maybe it's a new character created by the author with unique magical abilities that Fury, for some reason, wants to get his hands on. It could be someone with a combination of different magical skills from the original Harry Potter universe, like being able to perform extremely powerful spells without a wand or having the ability to control all types of magical creatures.