Board Thread:Game News/@comment-31952814-20160727050635/@comment-26944381-20160728135336

Febriven wrote: Kayrin wrote: No dude.. It's just a Quest.. Not Vortex..So...... I think vortex are counted as quest..

Yes, Vortex are counted as quest, Achievement Challenges proves it with the "Complete x missions/quest" (sorry I don't remember how it was, it's similar to the Daily task one but without region lock).
 * 1) cmiiw