"Portals to the infernal realms have unleashed demons onto the streets of San Francisco! S.H.I.E.L.D. will have to fight fire with fire... by summoning a few hellspawn of our own." — Chapter Briefing
15 Star Mastery of the Special Operation will NOT unlock Daimon Hellstrom.
One of the Tasks requires the defeat of an Epic Boss. This can be done by having the requirements needed to unlock the Epic Boss or by skipping the task by paying 25 Gold.
"Demons are pouring onto the streets outside Fisherman's Wharf. If that's not enough, the occult scientists of HYDRA are taking full advantage of the chaos, with Taskmaster at their head." — Mission Preview
"HYDRA tags out, and the Maggia tag in. Meanwhile, we have reports of a huge, dark monster eating demons. Blackheart? Or something else?" — Mission Preview