@Slushie, I owe you a virtual beer because with your help even my limp crew (43 Chewie, 40 Guard, 40 Stormtrooper) was able to beat this on Tier II.
I had thought I needed to hit the droids to avoid the Shatterpoint thing but this was a complete waste of time that was squandering my anemic offense. I now ignore them and focus on Mace, taunting with Chewie to keep the other two alive longer and applying buffs as needed. It usually works, sometimes just barely but a win is a win. :)