Hey guys, Mcmole2 here.
I decided to take my shiny 7* Nihilus as a lead through Galactic War with a full Sith team behind him. As you can see in the video below, they smashed through the entire place, albeit with a close call every now and then. I used Dooku, Zidious, Maul, and Palpatine behind him, but will definitely try Assassin and Trooper in there eventually as well to see what happens.
Anyways guys, I hope you all enjoy this video!