I hope there is a mission where you have to assassinate someone at an opera. Just like how honest Abe bit the bullet...
That would be insanely fun. Getting to decide how you get in, taking out only the target, which is harder, or killing everybody, which is easier, but less moral and more chaotic. How would you kill the target? Coventional methods? Possess a friend of the target, get close to him, unpossess in privacy, kill the target, and blink up to the rafters or possess your way out? Ooh, if it was a play, maybe an actor has a gun, so you can possess the actor and shoot the target as the actor when on stage! Although, a scripted sequence like an opera might be hard to do dynamically and realistically. Also, the audience would have to be very convincing, which would be hard to do.