Is there a reset cycle for Draenor bonus objectives?

So I'm doing Securing Draenor, and I only have four bonus objectives to go (the ones that give Apexis Crystals). Unfortunately, I often get missions that I've already completed. Is there a fixed cycle by which the missions rotate or is it randomized?
Hey Arganelement,

While I would not be able to comment on the mission rotation itself, please know that Sergeant Crowler just outside your Garrison main hall currently sells Scouting Missives, which can trigger the desired bonus objectives for you.

With enough Garrison Resources you can complete your achievement today :)

Hope this helps!
Oh thanks, I had no idea. Definitely just going to go with that.
02/11/2018 10:03Posted by Sorakleon
Hey Arganelement,

While I would not be able to comment on the mission rotation itself, please know that Sergeant Crowler just outside your Garrison main hall currently sells Scouting Missives, which can trigger the desired bonus objectives for you.

With enough Garrison Resources you can complete your achievement today :)

Hope this helps!


Secret service help in their own way - with holding his hand behind his back, still pointing in right direction with eyes.