BasilGrey HERE'S THAT AU THAT I MENTIONED

In the Assistant AU, Melissa is the niece of Major Monogram and decides that she wants to be an agent too. She tags along with a bunch of the agents, but her favorite one is Perry. Everyone tried to stop her from going on missions for a while, but then they just gave up. She always has amazing ideas anyways, and she's a great help.

Also Bradley's there, as an evil apprentice, going under the name "Nick"

Also Melissa and Bradley end up accidentally becoming each other's nemesis.

So yeah. This is what your "Melissa vs. Ham" thing vaguely reminded me of