I had the great pleasure in being able to run through this last night on Victory. Our group make-up consisted of :
1 Inv Tanker with Perma Unstoppable
1 Emp Defender with Recovery Aura
1 One Ice Controller
5 Scrappers! (myself included)
Absolutely tore everything apart. Nothing could stand against us. The only problem was when the tank was having a bit too much fun pulling truly massive trains of DE to clear the Titan room, and. . well, he pulled the rest of the room.. I have no idea how many DE that were in that pile, but we killed them all, though the controller, defender, and tank died :/
But it was a blast.
Things I picked up:
Make sure you kill all those lichen from the 1st wall to the 2nd. Very important. They breed like flies and once there are a lot of them, start putting the hurtin' on your team.
Ignore all the trash if you can from the entryway to the jumping of the 3 holes. There is a timer, so save some by bypassing all the DE up to the jumping into the 3rd hole.
Other than that, we tore through the place like we owned it. The key is that you need lots of single target damage on those walls and the AVs.. so make sure to get either half scrappers or single target blasters.. (energy, ice?). other than that, the "holy" trinity is alive and well in CoH, because you absolutely need a controller, emp defender, and tank. (For those that don't catch the reference, EQ trinity = enchanter/cleric/plate class tank.)