I was using level 54 phoenix with 4 stars each, level VI gear some 2 dot mods. It does ok against similar level squads. Not much squad wise, but the best I have so far.
Today I get on the 4th node, the 2nd silver node, and get up against a group with every character being level 74 and geared to at least 9 (vader was @ 10) and each modded with 4 and 5 dot mods. The 7 stars were Palp, Ezra, Hera, and Kanan with vader being a 5 star character, the only non 7 star in the group.
They come out and one- two shot each of my squad. Done before I can attack once. Is this kind of disparity in matchmaking "working as intended"? Why would I ever get put up against a group like that who is 20 levels higher than me? There should be a way to re-roll an opponent in the GW, even if its only a 1 time per day thing. This is ridiculous as it is now.