If Japan is using the Tokyo express rule and it has developed combined bombardment, can Japanese destroyers haul troops into an amphibious assault and still bombard in that same assault?

Yes. Under Tokyo express and combined bombardment, Japanese destroyers get to act in all ways as both transports and destroyers simultaneously. They don't need to choose to between them.

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I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.