I've been playing One Night Ultimate Werewolf (ONUW) for a few years, and I'm afraid we've been doing it wrong.
I play so that if you're a Werewolf at the start of the game, you stay on the Werewolf team even if your card is moved. Thus, if you discover your card was swapped with a Villager, for instance, you would want to convince people to vote for your card so that a villager is killed and you (the Werewolf) wins. Is this wrong?