Quiet
Quiet is more than just her controversy, she is also a solid buddy that can really help out when the situation calls for it. She’s a highly skilled sniper (one of the best in the world), and her stealth abilities are unparalleled (she can instantly turn invisible).
To get Quiet to join your ranks you’re going to have to put in a bit of leg work, as well as take her down in battle (safely, of course). She’s a highly skilled assassin, so just walking up and putting her in your helicopter won’t cut it. But, once you do have her, she can be used out on the field using the iDroid Buddy deployment menu. You can have her scope out a location from a safe distance, or set her to pick people off. Either way, it’s a good way to get things done without having to thrust yourself into danger, something that happens often enough in MGSV already.
Keep in mind that her presence on Mother Base lowers your soldiers’ morale, so visit often to provide a bit of balance. Also, when taking her out into the field, make sure it isn’t raining (water is one of her main weaknesses).
