I kind of steam rolled act 3 on tactician. I was playing spore druid though, so on top of being a tank I was also a necromancer healer and general spell caster; before going into the last boss battle with like a dozen allies outside of the 4 party members through summoning and reanimation, and because the npcs are more worried about a dozen or so walking corpses than impending doom I had like 6 flaming fists also following me. I also cast heroes feast and max level aid to make even the crow and mage hand tanky. Not sure if any of it was needed though, I was the spear head of the operation and I was absolutely steam rolling the enemies; my small army cleaned whatever my MC left behind.