After mucking around with several Imperial lists (read: getting Soontir Fel blown up in a variety of ways, often including rocks), I've decided to go back to flying Rebels. Here's an idea I've been turning over in my head:
RZ-1 A-wing - •Arvel Crynyd - 39
•Arvel Crynyd - Green Leader (34)
Intimidation (3)
Predator (2)
T-65 X-wing - •Wedge Antilles - 55
•Wedge Antilles - Red Two (52)
Swarm Tactics (3)
Servomotor S-foils (Open) (0)
UT-60D U-wing - •Cassian Andor - 53
•Cassian Andor - Raised by the Rebellion (47)
Fire-Control System (2)
Tactical Officer (2)
•Leia Organa (2)
Pivot Wing (Open) (0)
T-65 X-wing - •Garven Dreis - 50
•Garven Dreis - Red Leader (47)
Swarm Tactics (3)
Servomotor S-foils (Open) (0)
Total: 197/200
View in the X-Wing Squad Builder
The rough plan is for Arvel to attempt to flank, using his ability and intimidation to be a right pain in the neck. Cassian, Garven and Wedge move forwards as a group, attempting to maximise the benefits of firing at I6 to delete a given target. Cassian can then provide additional flexibility via his stress removal ability, especially once things devolve into a furball and Arvel (if he is alive) is boosting into things.