Ayyy, nice work on finding the probes!
As for the clues, they don't do anything quite yet; just teasers for future content! (I forgot to mention them in the last update, my bad!!)
You're on the money, too! The fire pit in the Farm has one, the sewers have another, and the last one is in the 51 base. The issue, though, is that I bungled a couple of these like the SMOLDERING FOOL that I am!
The one in the Farm had a switch issue so it doesn't actually do what it's supposed to, and the one in the 51 Base is set to the wrong priority so the player can't actually reach it.
That being said, Clues don't actually do anything this build and I'll likely be changing their locations for the next major update, so no pressure trying to find them yet!
Thanks for making the updated probe guide!