I faced this exact list in a store championship finals. It was a tough fight and very well flown list but my Brobots won out in the end.

Cartel Marauder

Cartel Marauder

Cartel Marauder

Cartel Marauder

Cartel Marauder

I'm currently 12 wins, 3 losses with it in my last 15 games (that includes the Yavin Open).

It's resilient, with 5 targets each with 5 health, and puts out a metric shedload of pain. The dials are not to be sniffed at either, with the white hard 1 turn and 4 and 5K. Knifefight, or get out of dodge. You can block effectively, set up multiple firing arcs quite easily, and there's no obvious target priority for your opponent to exploit.

I keep seeing people asking for a Kihraxz buff. I'm really looking forward to it!