9:30 p.m.
He f***ed up here. Because he got 2 primary guns which are nonlethal, and the pistol is a tranq gun. The guy or girl, can't kill the uav drones, which are hovering around him. So he is using smoke grenades to escape. The player should have used a rifle with lethal ammo, for taking out the drones.
The trick is to game the NPCs, by lobbing a loud frag, on the other side of the map, the guards all go there stupidly, so you can waltz on by.
It's only when 1 catches you, suddenly, they all magically know where you are, irrespective of where you are on the map somehow.
They go from blind as a bat --> Batman's Morgan Freeman sonar vision --> it (mgsv) is all about "hit box" as a "vision box" coding.
Some pro players, if you observe, do weird jump prone tricks, works right in front of npc guards (even if we can tell) and roll, or c-board box.