I don't agree, Citabria. If you thought a B26 was tough to bring down, you ain't seen nuthin' yet. One of these comes over with a head start and it will be gone before you can get there. It was maneuverable enough to be a heavy fighter with a 75mm cannon and 15 rounds (though only about 20 made). It had a much higher ceiling than the B26. Finally, remember there will be four of them at a time, not one. That's four 20mm cannon waiting to steal your 200 perks. We also already know how deadly twin-fifty tailguns are, even on the supposedly soft underbelly of the Lanc.
Finally, I think it only fair to turn away from American stuff for a bit, but if you must have another american bomber I'd much prefer to see the A-20. Fast, maneuverable, decent payload, and ubiquitous (served with virtually every Allied country). Good arena attack bomber, great scenario addition.