Yeah, that will be the Glass Vault, supposed to be silly hard with some really taxing puzzles in it.
You need to be level 26 to get into it though.
The first team to finish it, took 15 hours and over 1600 respawns to do it !!
Sounds bloody awesome .
Sounds bloody stupid
I'm up to level 20, still don't know what I am doing really just shoot/hide/jump repeat