I failed We Cannot Get Out at the very end (Mazog had called his final orc army), and so tried again. The next 5 times I tried (including after a relog), 2 Armoured Trolls appeared in addition to the Balrog, and one always gets past the two other dwarves and takes us out quickly. I have done this quest at least a dozen times before and have never seen them (one time I stuck around to watch the Balrog). Is there a technique to avoiding these trolls? Do they only show up if you've failed the quest once? I really hate playing the instances where you are not your character, but I want to complete the epic line. Thanks!