Funny part about this request is the J wouldn't add anything the H doesn't have. I commend HTC for thinking a bit outside the box and giving us the earlier birds as well as the H with the same tail, waist and top turret as the J would have. as well as the 75mm nose gun. There is nothing you could do in a J in AH that you can't do in an H. The mix of the 25C and H covers all the bases quite well for the 25.
And last I checked it's a B25 not and P25 or even and A25 so it's not meant to be a dogfighter. Not that I don't go looking for trouble in a light B25C strafer now and then.