Just started playing a few weeks ago, but I went 4-1 in my first tournament with the following build
Corran horn
-R2-D2
-Marksmanship
-Advanced Sensors
Roark Garnet
-Ion Cannon Turret
-Moldy Crow
-Jan Ors
Biggs Darklighter
The basic idea is putting an evade token on biggs to keep him alive while corran blows stuff up with marksmanship double tap. It worked well, beating soontir/chiraneau, panic attack, another corran build with a stress bot y, and a fat chewie with a wing escorts. roark pulled his weight with his pilot ability allowing corran to outshoot soontir and allowing biggs to take the stress from rebel captive instead of corran. The one game i lost was against a brobots list as ioning large ships is hard and HLC's burned through biggs too fast for him to have an impact.
Since this time I picked up a B-wing and changed things around by removing roark for a blue with Jan, advanced sensors, and an ion cannon with fire control system on corran. I am not sure whether I like the ion cannon on the blue or the mech that gives boost and target lock on biggs better. Thoughts?