@chillock117 I see.
You see, Alex sounds pretty darn improbable. He's a Soviet citizen, who speaks Germans but also know his way around the Junkers 87 early in the war. I can't think of any other scenario where someone who fits the above description is not pressed into deciphering codes, interrogating prisoners or developing and repairing aircraft. If he's a defector, I doubt the Soviets would allow him to return the Germans. If he was an expert who was on the exchange program with the Germans, I don't think the Soviets had experts to spare for assassination. Alex sounds too valuable to be send on such a mission.