False Messiah
The first time the mafia puts an FOS or vote on you, you're lynched.
After your death, you become the acting mod. Since you don't have the mod's notes, you can only play based on what you've learned from the game and any night action PMs you get.
If anyone in the town figures out that you don't know what you're talking about - by passing you an incorrect night action, calling out some rule you failed to enforce, or voting for you, then you suffer a fall from grace and the real mod takes back over.