It happened on Iris. And at first it was terrible. >.< I was basically suicide killing. I'd respawn, attack, do some damage, die, respawn, etc.
Luckly though, a mob formed and we started killing everything. Mages and Archs where insanely useful.
3nodding
Screen shots-
When the mob first got to the north respawn point in pront-
http://img.photobucket.com/albums/v195/NemuriDoragon/RO/screenIris003.jpg
http://img.photobucket.com/albums/v195/NemuriDoragon/RO/screenIris004.jpg
There was so many people it was hard to even find something to attack. >.<
Not the greatest image, but it was supposed to show the huge mob moving almost like a school of fish towards the next group of enemies-
http://img.photobucket.com/albums/v195/NemuriDoragon/RO/screenIris005.jpg
Wish I would have taken more pictures, but I forgot about it in the chaos. >.<