Why on earth are you and everyone else stat-ing B-Wings giving them Barrel Roll? That thing is hardly nimble enough to do so, and not even the A-Wing was given a Barrel Roll when it's the most nimble fighter in the Rebellion!
It appears to be strictly an Imperial function. It may or may not be conferred to the Bomber.
Also dumb down the dodge dice to 1. The B-Wing is NOT more nimble than the Y-Wing in any regard. Same goes for the Bomber. If the Y-Wing is dodge 1, so should they. Change expanded cockpit to say "Change the first Focus result rolled for this fighter on this turn to a blank."
I also don't see the need to pull more upgrade classes out of a hat when we already have some perfectly legitimate ones now. Bombers should carry Torpedoes standard with an upgrade option to switch them out to concussion missiles (say a 3-point modification card). They were designed with heavy ordinance delivery in mind and in a pinch go into combat dogfighting.
The Heavy Rockets look good though… I just hope it isn't too OP for the game.