In Metal Gear Solid V: The Phantom Pain it is possible for players to make your Horse Buddy "POOP". Many players are unaware of this fact. Thankfully, we have discovered a key combination which will make horse POOP in Metal Gear Solid V: The Phantom Pain.
The instruction below provides details on buttons to press that will make Horse Poop.
In Metal Gear Solid V: The Phantom Pain it is necessary for players to improve a relationship with buddies. To do this you need to take them on mission. Talking specifically about Horse, you need to just do your with the horse and often ride on it.
You will receive a message saying that you have made friends with the horse and now she has to "relieve myself".
After you receive this message, HOLD W and select the "POOP".
Hope this tip help you, tell us in the comment section below if you have any other tip like this.