I can't answer your question regarding the rockets in AH, but I have read several accounts that the 'mortar' they used in the German Rockets were highly inaccurate for air-to-air use, and were used primarily as a 'terror' weapon to cause rookies to fall out of formation. If historically accurate, these should not be able to bring down a B17 in AH, since in real life it was highly unlikely.
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Brian "Ripsnort" Nelson
"There is no reason anyone would
want a computer in their home."
Ken Olson, president, chairman and
founder of Digital Equipment Corp.,1977