Shark88 you had better read some history on the Me-163 before making comments like that.   While production numbers were not that great 10 - Me-163As, and 355 - Me-163Bs they did fly combat missions.   The very first was with one of the pre-series aircraft, it was painted red and was flown by Wolfgang Spate on May 13th, 1944.   
The very first group attack was made by the 1/JG 400 fighter squadron, on July 28, 1944, where five comets took place in intercepting a group of American bombers.   All return to base safely.   The Me-163 continued to fly combat missions to nearly the end of the war.   While the B-29 would be a nice addition to the plane set, it would end up being the uber bomber that would upset the game play.   
In addition to having a nuke, I don’t think so.    All you would have is a bunch of people running around upsetting the game dropping nukes every where, especially on other countries HQ, totally ruining this game for everyone else.    I would be willing to bet Wild Bill over at IEN would love to see the B-29 with nukes over here at AH.    It would save his dying flight sim with the influx of pissed off people from AH.    So lets do Wild Bill a favor and add the B-29 with nukes.   Then we can see 70 players at prime time like they do.