Once again I am sure there is a post out there (darned if I can find it) discussing the timer on the event mission orb drops. I imagine it is the same as the ARMOR intel drop rate but I can honestly say I do not know how long that is either.
In addition, do the missions only drop from patrol supervillains or can they drop from terminal, one-shot, raid, story mode bosses as well? I have only seen them drop from patrol bosses but I have not thoroughly tested any of the other areas.
Anyhow, a link to any previous posts answering these questions is tremendously appreciated.
Cheers