Picked up a snarl which, uh, killed my evil playthrough. XD
In Chapter 4, the code says “temp Betray”. Problem, though, is that Betray is called in later chapters and it forgets that you’ve set it. I’ll mention that I ought to be a candidate for something related to Betray of >=2, but that path is now impossible to reach. 
Also, I’ve discovered (in another playthrough) that if you’re going for the Empire yourself, it’s impossible to get the Army’s support, because you can’t ask the guilds to work with the army.
It also says, after I fail, that I told the Empress of my plans - when I did no such thing. And she appoints me Chancellor.