[Q] Stella Marie, take out the 3 overseers, armory code, and one last secret stash

[kschang77]

Thanks to one of the messages here, I finally found the hidden armory and nabbed the items inside. And I had previously taken down the 3 overseers.

That leaves ONE last item... about that robot that wanted to clean, and hid himself in the room and locked.

I found the monitoring room, but no help there.

I did find two fan switches, both have been reversed.

I came back down and the bot came out and attacked me. I took him down.

But the door's still locked (?!)

From reading all the messages here, I seems to have missed...

a) a THIRD fan switch in the middle level?

b) the door *should* have stayed open?

I've already ended the mission so this is more for my curiosity.