>>534058606
Alright, my takeaway after a few attempts is that I don't have a 4th melee operator.
Yu, Specter and Mountain are all good enough to hold once they come into play, but neither Melantha, nor Fang or Kazemaru can hold out when the last waves struck, even with a healer. Which is also sort of a problem because the healers aren't healing enough, being non E1.