What are some Scum lists that others have been running and finding effective?

Some 4x Trandoshan lists have been talked about. Also some options have been to bring 2 Rebels in (usually Gideon and someone else, like Luke or Mak). I have a Iggy-88 and Luke and Mak squad with Trandoshans and maybe a Nexu...that one worked pretty well. I don't have my cards in front of me so I can't get it specific right now.

Elite Nexus are superb for taking out groups of troopers, because the automatic Cleave 2 is deadly to Stormtroopers, who normally like to group themselves together for the reroll bonuses.

I've liked Vader + Tradoshan's myself. I believe there's a Navy card that allows you to bring 2 Scum deployment cards. The Tradoshans can bleed away the oppositions command deck and Vader is a constant source of damage.