Finnaly got it to work and nice job on it. The only thing I would point out with it is duing phase 2 where you stated "During Lorricks 'mutatation' everyone should run back to the door they entered". There has been multiple times where I have seen tanks do this and as a result, Lorrick decides to reset himself back to his starting position and at full health during the fight. The worst one I saw was when we got him down to about 5% and he reset himself. My suggestion would be to head to the other side of the room over by Kolto Tank 1 and have it tanked at the Red Door. I have yet to see Lorrick reset from that position.
Or just run to the closest wall you have... it doesn't really matter where he's Tanked so long as you have your back to a wall.