You MUST bring your own consumables!!
-lesser invisibility potions
Also know how to play your class. If you mess up , learn from it quickly. Have a min. of 463 ilvl in each slot.Tanks , make sure you know how to chain pull! This obviously wont be a one shot ..so don't join thinking it will be quick.
If you are interested in doing this watch this video on how to , so you can have an idea :