Some LS friends and I did a CM run followed by a Prae run a few months back with 5 Tanks and 3 SMNs (all with Titan out). Everyone wore event gear (either swim suites or Christmas gear) and were responsible for themselves only. We managed to make it through both dungeons. Half way through CM we ended up turning it into a bit of a drinking game but was the most fun I have had doing a dungeon in this game.