...and the 2TF is another foreigner (well kinda).
It took me about half an hour yesterday afternoon to work out what all the clues meant and then I knew what the list was even before I'd found it. A nice logical puzzle.
It was 4pm when we arrived at the GZ this afternoon - not quite yet dark. I thought it might be an easy find if I simply followed the trail of cave spider blood, but there wasn't any and so it took us about ten minutes to find.