Siege of the Warmind - strategy for any difficulty is the same. 1) Drive sparrow all the way through all enemies in the Forgotten Shores until you get to the stairs that go down under the building. 2) When in the hallway just before you get to the enemies on that catwalk, peek out, shoot stuff, retreat to hallway (nothing comes in there). Once you kill all the acolytes, there will be 5-6 waves of thrall. You can usually stand on the catwalk and shoot them as they run down the stairs, getting headshot after headshot. But, you can also retreat to the hallway if you need. 3) Kill the night by creeping up the stairs until only his head is visible. Hit him in the head with a sniper a few times. 4) Just before you enter the final room, stand at the window where the knight was. Right under your feet is a room that is accessible from inside the boss room. 5) Go in the boss room and activate the warmind. Immediately run towards the wall under the window where the knight was standing. On the right side, you will see a portion of wall that is protruding from the rest of the wall. Crouch and go into the right side of that hole (can't go in left. 6) From inside that little room, you can shoot almost without being shot. You will get shot as you look out, but it's easy to pull your head back and stay safe. Occasionally, a wizard will unleash that black cloud of poison in there. So long as you aren't on the verge of dying from being shot, it will not kill you. Just walk slowly to the far left of the room where you are the safest. Doing this, you can easily go through the strike 1-2 levels above your own level, and not die. If you have Icebreaker, bring it. And a solar damage rocket launcher for the wizards.