MGSV GROUND ZEROES TRICKS

Cutscene Controls
During cutscenes, press R2 to zoom in.
During cutscenes zoom in, move Right Stick to control the view.
This can be done in the Main Menu as well.

Cutscene Skip
During cutscenes, press Select to pause, then select Skip to skip.

Faster Lockpicking
Repeatedly press the Action Button (△) quickly to pick locks faster.

Under Stairs Hold Up
When hiding under a staircase, you can hold up soldiers who are on the staircase.
When they lay down, they will slide down the stairs.

Open Unopenable Doors
There are doors in Camp Omega which can not be opened.
During alert, enemy soldiers will come out of some of those doors, leaving them open momentarily.
Snake can stand in front of the open door, which will stop the door from closing.
Snake will be unable to enter due to an invisible barrier, but you can look inside to see they are just empty rooms.

Unresponsive Surveillance Cameras
If you eliminate all the enemy soldiers, the surveillance cameras will no longer react to your presence.

Extra in Chamber
When you manually reload a weapon, the weapon reloads to a full magazine plus one extra bullet in the chamber. If the weapon automatically reloads after the magazine is empty, it only reloads to a full magazine.
Staple of the Metal Gear series.

Director Kojima in Helicopter
Clear Side Ops 諜報員奪還 Intel Operative Rescue, and Director Kojima will be sitting in the helicopter with Snake until the next mission.
Open the Mission Select menu, wait a while and Director Kojima will spin the mission select menu.

Chico or Paz
It is possible to rescue Paz before rescuing Chico.
Enemy positions will change.

Random Retrieval
It is possible to retrieve random enemy soldiers onto the support helicopter.

Can Not Land
If you place a vehicle under where the support helicopter is going to land, Morpho will call for immediate removal of the vehicle and will not land.

Helicopter Interactivity
You can see Paz and Chico inside the helicopter, in the same positions as in the ending cutscenes.
You can interact with them by shooting guns or throwing things at them.
If you throw a grenade at them, it will result in a Game Over.

Rat Patrol
Rats can be eliminated with emergency evade dive.
Rats can be eliminated by stepping on them with ninja run.

Mantis Screen
Read the Manual in the Main Menu.
Last page.

Reflex Knock Out
During Reflex Mode, throw a Magazine at the enemy's head and you can knock him unconscious.
Cameras can also be destroyed this way, but I haven't tried yet.

Reflex Setting
In the Options menu, turn Reflex Mode to Off.
During battle, even if you get discovered by enemies, you will still receive No Reflex points in the evaluation.

FOXDIE
In Déjà Vu mission, approach the hostages being held at where Chico and Paz are held in the main mission.
A cutscene will occur of FOXDIE virus trying to corrupt the FOX Engine.

Toilet Soldier
Déjà Vu mission, behind the starting position, approach the toilet in the hostage holding area to hear moaning.
Staple of the Metal Gear series.

Shadow Moses Themes
Clear the Déjà Vu mission MGS Quiz, and the Déjà Vu mission will change to have snow weather, and soldiers will change to white Genome soldier uniforms from MGS1.

Not A Kill
Drop enemies into the ocean.
Drop from high place.
Shoot an oil drum, explosion kills enemies.
Killed by runaway vehicles you are not driving.
Killed by vehicle explosion.
Killed by land mines set by enemies.