Dude, you should release this map along with your previous 2 maps as its own episode. All of them have the same aesthetic and general atmosphere and takes place in the same "universe". 2 more maps like this and the episode will be complete!
Apart from that, this map is a nice self contained mini-adventure. At times it feels like Half-Life and at times like the recent Call of the Void (mixing the Base and Eldritch aesthetics so that the lore point to "portal esperiments gone wrong and the facility overrun" It gets touched on and I feel like it can get expanded upon much more, but here it gets incorporated very nicely. There is much more to explore in this area as you do got the eye for this style.
The combat is on the easy side even on Hard, and the spamming of Scrags got a bit old, but that happens in many maps. But it serves the purpose for the environment, which definitely is the main showcase here. I love this style, and I would like to see more of this.
I enjoyed the return of the Corporate humor and Slippy. Very charming, very humorous, beautiful environments, all in that cheeky tone which doesn't take itself too seriously but nonetheless done earnestly.
I faxed a clarification request to HR, and this is their official standpoint regarding your tea:
"SlipCorp does not accept responsibility for loss of valuables, personal autonomy, or thermal tea mass.
Thank you for your continued cooperation.
SlipCorp
Connecting worlds."