Lock on: “Turrets, mines and other automated defenses react 30% more quickly”
It’s just a wording bug, because it says nothing about Fletchers grenades (Fletcher has lock on) but instead says “mines” when Proxy doesn’t have a single loadout card that includes lock on, so that shouldn’t be in there at all.
Plus, it shouldn’t really say automated defenses, because Fletchers nades are manually detonated.