Devils Lair Grandmaster Nightfall - 2 player
LFG group that I created.
The third player left or lost connection, but probably just left. The other player in my LFG stuck around and together we finished the bulk of the large open arena where the Brigs and the Walker are just before the boss fight and went on to crush ole Sepik's stupid grill.
Thank you, patEFon4 for sticking around like the Conqueror (x5) that you are. :)