This.
I find this challenge so luck based that I stopped after few tries. I cleared 1 and half floors and did not find means to escape. Non trapped teleporters are extremely rare and explosives are locked in armories - and you need lucky stairs leading into them. In other words, it is reward for luck, not so much for skill. Biggest problem I see is, that you are not guaranteed escape even if you somehow clear the entire place (except armories and prisons that are locked), so you can play for hours, not screw up and game screw you up instead.
Some tips.
- start as Survivor, you need that pocket knife
- if you don’t start with bedroom in your wing, commit suicide and start again.
- smash beds and stuff (you might need lucky drop of bashing item for that)
- level fabrication to 1(nails to hooks)
- level survival to 1 (bindle + deconstruct)
- level tailoring and craft + reinforce gear
- you should have trench coat, backpack, club and more before midnight, when it is safe to sneak around the turret
- use pen and paper to map underground in more detail than map does
Traits:
Night vision - obvious, never took it though
Cannibal - never took it, but food inside is rare, dead humans are not, penalties for eating them without trait are extremely severe
Light step - silent movement
Ninjutsu - silent attacks, works with melee weapons
You could probably make a character tuned for this challenge but after you get out, you would have worse mix of stats and traits that if you start as Evacuee. So it is not for long term character IMO.