Not the worst I've seen. Captain Crunch Berry takes that cake.
But that sort of thing is few and far between, in my experience with Subterfuge.
(Also, I sincerely hope you take it to this guy, wipe out him and his "allies" and then before you win the game message him saying something like, "I think your neck is bleeding.")
"No man chooses evil because it is evil; he only mistakes it for happiness, the good he seeks."
-- Mary Wollstonecraft