This was an experience.
So I've done my first match, as Nurse.
No perk, no add-on, no vision ... Blinking almost blind all the time was challenging.
Finding survivors was a challenge. My only help was the sound they made.
I've won this one but only because since I've not played for months, I've gone against a prestige 0 & 1 team.
My second match was with the Doctor. The team was arguably better but it was way easier that with the Nurse. I got an abandon tough, which is kind of a bummer given it's only the first few hours.
This mode is great so far.