My individual tasks in the first and second day were to research interesting interactions between 2 different roles. While doing these tasks I have read through the entire extended rulebook once, repeating areas of interest as many times as necessary.
My answer on the first day was related to the previous game I had just won and one of the tactics I used to achieve that, namely the interaction between herald and dog/cat. In a situation like the previous game, where the dog and cat were forced to become aligned, and there was no additional FT / warlock in the role list, we got to a situation where we knew one of them was dead but couldn't confirm the role of the other. Using reporter information though, I figured out that the night the cat had died was the same night I was checking for FT with my herald ability. This basically meant I could confirm the remaining dog no matter what they chose and form an alliance.
On the second day, I did a bit of theory crafting themed after snowballing, with various interactions between the cupid and role changers. I talked about the vampire and the infecting wolf targeting the cupid's lover specifically, and how it removes one player from one faction and adds two to another one. With this analysis I also highlighted the case where the cupid's lover was a cult member, making such a play even stronger by planting a spy in the town faction.
My task on the third day, but this time I was asked to research and edge case instead of any interaction. For this I went with the aforementioned corrupting wolf - hag interaction, which had already been on my mind yesterday, and which was praised as an incredible find.
Aside from my own tasks, I was also trained in 3 different areas by my seniors (one of which I had to report due to abusive conduct which lead to their demotion). My first training had to do with how to deal with players that are unhappy for being eliminated early.