Okay i'm sorry its be a bit since the last playable build, so straight to business!
Currently working on a puzzle, you have to get a key-card so you can get in the security room and access to more key-cards, then the mission will be to access the portal tech room. So the "Free Roam" of this part is the three corridors that will be there for you to navigate through and try figure out how to get these key-cards and not fuck this up by using them on the wrong door.
The reason i'm being slow due to this chapter in specific is that its a chapter to introduce puzzles, or maybe more fun things and more open approach where you need to walk and examine things in order to progress, and not just go with the flow like some sort of track.
I'm posting these WIP SCREENSHOTS to demonstrate how this might work, jumping from corridor to the next and try figuring out the doors, various references to another games, but do not be fooled, some risky doors will give a key to success, another not so much, maybe optional objectives that might just be what you need for a good ending...
Choices matter here, so try figuring it all out, there's a very forgotten character soon to emerge to save your ass, if you met them before....