I'm not really expecting an answer for this, but I'm hoping against hope. There are many Game Settings, soooo many, I'm wondering if anyone knows the exact settings that controls the specifications of switch from ranged to melee for NPCs. Namely, at what range and how quickly they will switch to a melee weapon when enemies are within melee range.

If anyone has experience messing with Game Settings, even if not for this specific request but a more general answer, it will be much appreciated.