So, with the announcement of the C-ROC, I came up with this list:
C-ROC Cruiser (35)IG-88D (1)Zuckuss (1)Heavy Laser Turret (5)Backup Shield Generator (3)Dengar (3)Optimized Generators (5)Merchant One (2)IG-88A (36)Fearlessness (1)Fire-Control System (2)"Mangler" Cannon (4)Autoblaster (5)Autothrusters (2)IG-2000 (0)Syndicate Thug (18)Twin Laser Turret (6)Bomb Loadout (0)Extra Munitions (2)Unhinged Astromech (1)Cluster Mines (4)Syndicate Thug (18)Twin Laser Turret (6)Bomb Loadout (0)Extra Munitions (2)Unhinged Astromech (1)Cluster Mines (4)Syndicate Thug (18)Twin Laser Turret (6)Bomb Loadout (0)Extra Munitions (2)Unhinged Astromech (1)Cluster Mines (4)Ketsu Onyo (38)Swarm Leader (3)K4 Security Droid (3)Inertial Dampeners (1)Inertial Dampeners (1)Engine Upgrade (4)Shadow Caster (3)Cartel Spacer (14)"Light Scyk" Interceptor (-2)Cartel Spacer (14)"Light Scyk" Interceptor (-2)Cartel Spacer (14)"Light Scyk" Interceptor (-2)Cartel Spacer (14)"Light Scyk" Interceptor (-2)Total: 299View in Yet Another Squad Builder (There is a bug with the editor, the Backup Shield Generator doesn't want to stick around)
For just 55 points, you have a Huge ship that pack a punch.
You have the IG-A to alllow the C-Roc to regen shield from kills and also serve as an Ace killer with the Autoblaster.
The 3 Y-Wing with TLT are perfect to keep punching opponent huge ships with reliable damage. The Cluster Mines can also add a tons of damage if they land on the huge ships, but can serve to block paths too.
Then you have Ketsu with her escort of Light Scyk. She throw between 3 and 6 red dice, which allow to quickly chew throu huge ships shields and the tractor beams help against more defensive ships like defenders.
I think that list is pretty solid. It will most likely get improved the more of this expansion get revealed.