And I agree with Martin
The problem is that a heavy bomber needs a much different environment than even the tactical ones we have. IMO the only bombers worth working on are those tactical ones since they did missions which can be depicted in this game - unlike those of the heavies. For them the whole issue of briefing (with pics or schematics of the target zone), targeting itself (viewing distance, group dropping by AI, question of points and/or medals/promotions in campaigns etc) and a number of additional problems (radar, interceptor AI, formation size and type ...) would have to be solved before even the first plane would be ready.
For me the Il-2 engine is best at tactical level (not to say it couldn't be enhanced a bit) and close air support.
PS: Lesni - wrong avatar. Didn't you see the correct one @ the daidalos board?