The MC travels through movie worlds. so far: Captain America, Underworld, Iron Man, Black Panther, Equilibrium, Wolverine, Venom, Avenger, Transformers, Resident Evil, ...
The time in the real world is quite short. Mostly plots are played in the movie worlds until around chapter 250, where MC finally start to use his "wins" in the real world to get rich.
I like fanfic genre and until now at chapter 1000, I like the novel so far.
P.S. MC occupies Hydra but similar to SHIELD, both are just "tools" to get yo his goal to become stronger in the real world. Novel does not focus on nazism ideology.