In each map, there is a locked door that require key you get from completing tasks (if you don't know what is tasks, you need to spend some money and data to unlock a new building in the Hub and there will be a lady in there give you tasks).


After finding (the hard part) and open the locked door, you will find a computer in there. Interact with the computer and collect the disk, then successfully extract alive with the disk will let you bring it back home. Go to the Task Lady building and use a terminal there (on the right side) to unlock a new weapon.

This is the easiest to find door. You just run along the map edge until you find a door with papers on the floor in front of it.


Inside there it should look like this:
Activate the computer, wait a bit and collect the disk will also summon floating TVs around the map until you extract. These TVs are harmless on their own, but they obstruct your visions and make it harder to see and shoot enemies.

Now go home (alive) and use the terminal to unlock your first weapon (Which is a ♥♥♥♥♥♥ 10-round mag rifle that worse than your handgun, until you find some magazine mods to upgrade it, then it's the best!).

This is the hardest door to find imo. Bring along a weapon with flashlight for this. To find it, you should go to the lower floors (floor 1 or 2, im not sure) where there are a lots of burning barrel fire. Then, try to run around and look for something like this


Walk around it until you find a door (It should be closed. I already open it in my screenshot for visibility). There a update patch that add an orange glowstick before the door, should make finding it easier.


Inside it should look like this:

Activate this computer and collect the disk will darken the map and everything turn quiet. Look like a horror game now. Don't panic, turn on your flashlight and pay attention to the new type of enemy (you will need to kill them for tasks too), They have black bodies with white mask, quite squishy so it shouldn't be hard to kill, just stay calm. Just kill them, take it slow and move back to extract point (ideally you should find it before trying to find the locked door).


Video:

It's not too hard to find the locked door for this map. The hard part is escape after collect the disk. First, go to higher floors (floor 3 or 4 i think) and look for a room with lots of medical curtains:


Go through it and walk to the upper floor (you should see elevators on the left):


Move forward and turn right, you should see a door with some candles:


Get in there and you will find a cursed-looking room with a computer. I recommend locate and prepare an exit point before get the disk. After you activate and collect the disk, the sky will darken and a new type of enemy will spawn. This enemy look like a dancing statue and has the ability to shake your camera when you look at them (thus make it hard to kill them. They are still kill-able though and drop 1000$). Bring the disk home and unlock the powerful but clunky to use Sniper Rifle (which can instakill anyone in the game with a headshot)

Video:

This is my first guide so if there anything can be improved, please let me know <3.