Im trying to finish brd for the achievement but Im lost. As far as a remember you would to in the instance, go left then right, open the door and use the cogwheel thing to open the big double door. Now, for me, there isnt anything to click to open the big door. Ive ran round killing most of the bosses and am just completely confused on what Im not doing. Ive googled and searched but Im guessing its outdated.