B-29s had excellent defensive capabilities, something that would tie into the game perfectly. The gunners operated from remote positions. AH could take that 1/2 step further by having the player gunner link weapons systems, much the same way the real B-29 could. In other words, instead of having a single gun mount trained on a target, the computing system linked to all weapons that could be brought to bear on the target...so, let's say you're attacking a B-29 from level altitude, 45 degrees off the tail, from the 4 or 7 o'clock position. The top turret, side turret, bottom turret, and tail turret could ALL be brought to bear on the target, in the same way the 4 gunners on the real B-29 would have historically. Then you have .50s and a 20mm in the tail. Makes killing B-29s a definite challenge.
So it carries more than a B-24/B-17/Lanc, and higher and faster. I've taken B-17s and B-24s up to those altitudes. It's the only way to ensure you're not going be attacked by dozens of players at once. Make it a perk bomber, give it the ability (if launched from the rear-most bases) to spawn at 10K to shorten flight times. It's still going to take that player time to fly across the map. Pre-burn the fuel if you spawn at altitude. Bombing from 30K also has disadvantages, including accuracy, so that effectively negates it being an uber-weapon in the hands of most players. Besides, most B-29 operations were done from lower altitudes after the USAAF realized the accuracy was terrible from anything higher than 30K. This also opens up the possibility of having some addition aircraft to compliment the B-29, Nicks, Jacks, and the Ta-152 in the game would finally have something worth climbing up to 30k for.
J