Someone estimated about 300 players in the area. Really heavy lag, and destro eventually gave up on trying to get the fort. Really a shame this endgame feature isn't playable right now... but then again, it doesn't happen that often. I took screenshots, though.
Gathering up for the storm. We were waiting on this BO in Black Crag when Reik locked:
These were the destro that were guarding the BACK door of the fortress:
And this is the front gate: