But feral sense also seems to massively increase how far away a zombie can see you. How *exactly* does feral sense work? and more importantly where is it hidden in the game files so I can mess around with it?

I see something listed in the XML called AIFeralSense that is set to 1.5 for the basic zombies but I don't see what it does or how it is applied to any of the values? Is it reducing the threshold of noise waking zombies up by 50%? is it increasing the range at which zombies will awaken by 150%? both? The patch notes are painfully vague, I understand that Alpha 20 was a BIG BOI but a lot of really helpul info was left to the players to figure out the hard and annoying way, like how the archery buff was given 1 line in the patch notes but it literally increases the damage of bows from 50%-92%? Did the guy who writes the patch notes not think any of this info was important?