"Arcade has used powerful nanotech to turn half of New York into his own private playground... and we're his toys. He's arranged a game of heroes versus former villains, with the Agent invited to be Player One." — Chapter Briefing
15 Star Mastery of the Special Operation will NOT unlock Nico Minoru.
Two of the Tasks requires the defeat of an Epic Boss. These can be done by having the requirements needed to unlock the Epic Boss or by skipping the tasks by paying 20 Gold each.
"To make things interesting, Arcade has seeded his Murderworld with robotic clones of heroes and villains. Make sure it's a machine before you shoot." — Mission Preview
"Looks like Arcade's interests have taken a turn for the mystical in this section. If Nico Minoru's still inside Murderworld, she's here." — Mission Preview