The V-1 and V-2 "reprisal weapons" cost a total of about $3 billion to build and were thus more costly than the Manhattan Project ($1.8 billion). 6,048 V-2s were built, at a cost of approx. RM 100,000 each, and 3,225 were launched. Most of the launched rockets carried a warhead consisting of 738 kg of Amatol.
For comparison: In a single 24-hour period during Operation Hurricane, the RAF dropped over 10,000 metric tons of bombs on Braunschweig and Duisburg, roughly equivalent to the amount of explosives that could be delivered by 10,000 V-2 rockets.
- paraphrased from Wikipedia
Regards,
If the Nazi’s had perfected a nuke warhead to go on those missiles at the same weight as the amatol...then two of those missiles could have done the job more completely on two cities the size you cited then 10000 metric tons of conventional bombs would ever had done!