Dear Anet,
We just gathered up a really nice group and killed the knights within 5 and a half minutes. But we did not get the achievement.
I have attached a screenshot showing we got the rewards etc when the clock was still 00:05.
Please fix it and give us the achievement.
http://i58.tinypic.com/2emg3ug.jpg <— Look at this nice gathering up
http://i61.tinypic.com/n21uvm.jpg <— 00:05 we did it!!
http://i57.tinypic.com/ea12sk.jpg <— OMGWTFWENOTGETIT
