Being a huge Y-wing fan, I wasn't sure what to make of the BTL A4 card when I first saw the spoiler . Initially I was disappointed as I wanted to have a BTL S3 upgrade that mimicked the B-Wing E's upgrade that gave an extra crew slot (Fitting C-3PO with Salm would've been fun).
However I do like that I does help increase firepower (which is quite lacking in a ship that is supposed to be known for it's firepower) and it gives it a more Y-wing flavour/fluff than a extra crew slot would`ve done. I think i`ve read somewhere that this is exactly what FFG planned was they didn`t want to have too much niche overlap between the two rebel fighter-bombers.
Anyways I'd like to hear your thoughts on this new card and how it would effect the game. I know Salm and Dutch + extra target locking upgrades just became that much stronger (not to mention the two new Scum wishbone pilots) if you're okay with trading turret gameplay versatility for increased firepower.