I'm debating between a few different list ideas built around Roark's ability, based on an idea I saw on MetalBikini.
Without cannons:
Roark (19)
Wedge plus Swarm Tactics (31)
Garven Dreis (26)
Green A-Wing plus Swarm Tactics, Stealth Device (24)
The idea being that Roark boosts either Wedge or the A-Wing to PS12, who then chain it to give the entire squad the first attack. Pros: almost guaranteed to shoot first, Garven being able to pass Focus tokens to Wedge allows either Wedge to fire with a Target Lock/Focus combo, or hold onto a focus token for defense. Cons: The X-Wings are my only real offense, and Roark is basically mobile blocking terrain with a PS buff.
Variants of this list would be to replace the A-Wing with another X-Wing (attacking at 12/9/9), give the A-Wing PTL instead of Swarm Tactics & Stealth, and/or replace Dreis with Biggs (and droid, if I ditch the A-Wing).
With Cannons:
Roark plus Ion Cannon Turret(24)
Wedge plus Swarm Tactics (31)
Rookie X-Wing (21)
Green A-Wing plus Swarm Tactics, Stealth Device (24)
Roughly the same idea, only replacing Garven's Focus candy with something resembling actual offense out of the HWK slot. Pros: the HWK can do more than throw 1-die attacks and try to block ships. Cons: everything runs through Wedge, and he doesn't get a focus token to defend himself anymore.
Variants of this list would be to again consider swapping the A-Wing for an X-Wing, or just running it without any upgrades at all. The latter option would allow me to either upgrade Wedge's wingman to Dreis or Biggs, or upgrade Roark to a Blaster Turret/Recon Specialist combo.