I've been slowly exploring Central Production B, and remembered how to block, parry (timed block that allows for a follow-up attack), backstab (R1 from behind), and use drones to attract enemies. I'm using a giant hammer, which requires a lot of care to avoid taking damage. I also learned that big weldring droids have weak back armour. I finally discovered a shortcut enabled by smashing a certain type of door, that is breakable for some reason.
Looking at the recording, I think I know where to go: Using the shortcut to the red light area, I should take the first door on the left, go past the almost dead guy on the floor, follow the giant tubes to the Recycling area, through a gate at the bottom to a room with a door that leads to the boss area.
Using video recordings to analyze games after the fact is an interesting activity, one that before this decade wasn't practical in all but a few games with replay functionality.
I figured it out, beat the awesome looking FIREBUG, and entered the Resolve Biolabs.
I still have the flu, but did a little better and gained some progress. I had a particularly heartbreaking experience, where I after a long search discovered a button to disable guard systems, and one meter from being able to turn it off, I was murdered by a Bloodhound. I *hate* those things.
I have returned to Central Production B. This is where I wish I had payed a bit more attention to what NPCs are saying, because I have no idea why I'm here. Anyway, my drone can open doors now, so that's great.