MGSV:GZ - OSP Challenge, Hard Mode, S Rank, No Reflex, Alerts or Kills

S rank playthrough of Metal Gear Solid V: Ground Zeroes on Hard difficulty, without relying on Reflex Mode and without alerts or kills. I also self-imposed an "OSP Challenge" which means I start off the mission with absolutely nothing in my inventory. Of course, the game forces you to have weapons and items in your inventory at all times, but I won't be using anything before I've actually picked it up somewhere. This is a prelude to my TPP playthrough where I use the Infinite Heaven mod to actually get rid of everything in the inventory and play each mission like it's one of the [SUBSISTENCE]-missions.