It's small, but it packs a punch:
- Darth Vader (29) + Concussion Missiles (4)
- Maarek Stele (27) + Push The Limit (3) + Concussion Missiles (4)
- Bounty Hunter (33)
The idea is to launch a pair of concussion missiles early, with Focus on both, and then use stacked actions from the TIE Advanced and backup from the Firespray to further whittle down your opponent's ships. Meanwhile, you can take almost as many hits as the typical 6- and 7-ship Wave 1 lists, and you're more evasive than most equivalent Rebel lists.
There's more discussion here (and yes, this is another entry for the Team Covenant contest). I'd love to have your comments and feedback!