Best strategy for thrawn?

I won only when I gave up. I took off my arena mods off Phoenix and put junk mods on, decided I needed to wait until next event cause I couldn't make a dent in their protection after 100 or so attempts. Gave it one more go before event ended on a day I was bored and I won. So I'm with the RNG beats Thrawn crowd.

As for my strategy though, I used Sabine and zeb's stagger along with kanan's offense down and got rid of deathroopers first