Or at least a capacitor that holds the power long enough to get the save in. Ever notice on the 360 now when you disconnect the power brick it takes a good few minutes for the light on it to actually go out. The system itself needs this. They could do it if they really cared about the cheaters.
Xbox GT: Net Sh4rk Have a mic but Sharks don't talk.
K/D is saved online. You can only dashboard out of a poor K/D because stats aren't updated until the end of the match (to avoid hammering servers every kill). Dedicated servers should definitely fix this.