https://github.com/RedDeadlyCreeper/ArmoredCombatExtended/blob/21b7c5539b476e2222150f9f14244ffb859fe0f4/lua/autorun/acf_globals.lua#L286-L325
The given variables are updated only when ChangeCallback is triggered. If the server is restarted or the player in single player will re-enter the GMod, these variables will be reset to their default values, which are written at the beginning of the code.