FOUND! Field Trip Fic (kind of)

[dreamwind83.livejournal.com]

So I am looking for a fic I know was on AO3 and I'm hoping it is still there. It was a multi-chaptered fic and was pretty long last I read it. It was kind a field trip fic in that the Midtown AcDec team was at SI for a field trip. While they were there the Avengers were having a building wide battle competition that the students and other visitors got to watch, and Peter and Harley were announcers. 

At one point Peter slips away and gets in his Spider-Man costume to join the competition. Harley does as well, along with his little sister and Shuri (if I remember correctly).

But during the battle some villians invaded and took the building hostage. At one point Peter and Loki are working together to take down some of the villians since the Avengers haven't realized yet what happened. But they get seperrated and I remember in one of the later chapters that Peter, in his Spider-Man costume, has been very badly injured protecting his decathalon team and Harley (and possibly Flash) had to perform surgery on him and in the process they revealed Peter was Spider-Man to his teachers and classmates.

FOUND! It is "Keeping Up With The Avengers" by Achivewriting