Here are the notes that I took on beating the final tier of the Thrawn event back in January. Hopefully this is helpful for you:
I attacked the Stormtrooper until I could clear his Taunt, then used Zeb’s first special on a Deathtrooper, then attacked the same Deathtrooper to remove all of his turn meter. Then Hera called an assist on Zeb against the other Deathtrooper, and then Ezra did the same, which stunned that one, and caused him to miss a turn.
I used Kanan’s special ability to increase protection on the ally that needed it most, and didn’t use a Taunt on him or on Chopper until it was down to just Thrawn left. If you Taunt and let them focus on a single toon, they’ll kill your tank too quickly; this is one of those rare times where you want to let the enemy spread attacks around on your squad, so they all stay alive.
Kill the Deathtroopers first, then the Commanders that Heal, and by then the Stormtrooper will have his Taunt back up again, so kill him, then get rid of Thrawn last.
I ensured that I had Zeb at the highest Speed and Potency possible, as it is critical that he goes often and that he sticks his debuffs. My Zeb was at 182 speed (+67 from the best mods I had at the time back in January) and around 60% Potency. All of them were around +65 from their base speed, except for Kanan, who I modded with a Protection Arrow.
I think it’s also critical that you Omega all of the Uniques.
My Ezra was Gear 9, plus a few pieces, and everybody else was just Gear 8.
