I've been fiddling around with some Imperial alpha lists for epic play. This is what I've come up with:
Zeta Specialist (30)
x 2
Special Forces TIE (23), Fire-Control System (2), Targeting Synchronizer (3), Special Ops Training (0), Lightweight Frame (2)
Nu Squadron Pilot (22)
x 4
Alpha-class Star Wing (18), Harpoon Missiles (4), Guidance Chips (0)
Cutlass Squadron Pilot (36)
x 3
TIE Punisher (21), Trajectory Simulator (1), Extra Munitions (2), Unguided Rockets (2), Thermal Detonators (3), Proton Bombs (5), Lightweight Frame (2)
Kylo Ren (44)
TIE Silencer (35), Push the Limit (3), Fire-Control System (2), Sensor Cluster (2), Autothrusters (2)
Totalling 300 points.
Kylo is an ace to have some fun with, and do some endgame damage.
The punishers fly out front - there's not a ship in the game that will joust 3 proton bombs to the face each round, and they're too tough to kill early. Unguided rockets give them a combat phase contribution. If the opponent tries to flank them then I pepper them with missile fire until they're forced to turn it.
The Zeta specialists act as spotters for the gunboats, while contributing their own substantial attacks, and the gunboats end the round with a bang and a half.