I think the B29 will come late in the game, pyro will moddel other aircrafts before.
Maybe arado, A26, the big canon B25, one of the big german bomber (don't recall), maybe an attack like IL10? I don't think B24s will be perked. Hey...Catalyna maybe? because can bomb and drop troops at the same time (a wild guess?
I have no clue, I would go with Arado, good way to introduce a Jet.