The developers sent us for a bit of a loop today, putting an Ulduar boss up for testing with very little notice immediately after PTR maintenance. Matticus, ever reliable, threw together a quick 10-man raid and welcomed me along to try out the Flame Leviathan. Unfortunately, Michael Sacco (who walked you through Hodir and the Iron Council) wasn't able to go with us this time around. I think he did it on purpose so I couldn't make any jokes about his inability to perform, if you know what I mean.
The Flame Leviathan is the boss (or one of the bosses) that uses siege vehicles in its encounter in the outdoors portion of Ulduar. For the safety of those that do not wish to be spoiled on anything Ulduar related, I'll put all information on the encounter beneath the cut below.
Again, if you do not want to be spoiled, do not click the link below.