I’ve managed to reach (and complete) the 9th Circle, and have in fact been preparing to make a post about them so I’ll have that up somewhat soon, but I can safely say:
There are more than 9 missions in this chain.
Completing Dante’s 9th Circle did not give me an achievement, nor was Virgil a Potential Reward.
Considering Virgil is Dante’s guide through Hell in the Inferno of the Divine Comedy and I went through all 9 Circles of Hell, I’m going to guess that there is another mission potentially involving Purgatory, as Virgil was Dante’s guide through Purgatory in the Purgatorio.
I was unable to reach the following mission, so I have been slowly working back up the chain.
Since I started it while just running Agent Missions blindly, I’m not entirely certain what triggered the first run, but I did not need to complete the Bonus Objective for subsequent missions in the chain (as I lacked the Agents to do so). I’m trying to figure out what I did the first time - it seems like it isn’t always proccing!
I’ve recorded everything for all of the missions I’ve run during that first run of the 9 Circles, but since I’ve run the 1st Circle so many times, I didn’t really think about it or expect it to do anything different at the time. I’m keeping track of every time I run the 1st Circle now.
All of Dante’s Circles are 1 missions, with the first two being 15 minute missions and the rest being 1 hour missions.