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Junkers Ju 88SI'll go for that. A Ju-88 powered by DB603 engines is more or less just as capable as Me-410 powered by similar engines. Larger airframe probably superior for carrying some weapons such as torpedoes, mines and Hs.293 wire guided weapons.
Point of Departure. Early 1943.
Henschel Ju-88 plant expanded with goal of producing 400 Ju-88 bombers per month by end of 1943. These bombers will be powered by either DB603 or Jumo 213 engines to increase range / payload.
Expanding an existing production facility is inherently easier then switching to a new aircraft type. DB603 and/or Jumo 213 engine production must still be expanded to provide the necessary bomber engines.
Remainder of plan is the same. These bombers go to Kampfgeschwader whose mission will be to disrupt Anglo-American preparations for the invasion of NW France.
March 1944.
Let the Luftwaffe night bomber offensive begin.
Me 410B was sheduled for March 44 (Dornier München)
Hard part would be flying through Allied defenses to get at the vulnerable troop transports.
And the resources used up in this fututile attempt will not be avaialbe for other things.