Why doesn't Josephus go into greater detail about Jesus' "marvelous deeds," instead of just tantalizing us?

Because Josephus is following the source text before him, which does not go into detail. Luke only writes Jesus was "mighty in deed." Perhaps Josephus did not know anything about the deeds of Jesus, but we cannot tell if that is the case, as Josephus often closely follows his sources, allowing only stylistic variation, evidently to prevent charges of distorting the record.

His desire to follow his source thus does not preclude the notion that he has reason to trust the source as authentic, as valid as any of the other historians whose work he employed in the Antiquities. More.

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.