Death Metalist
Member
With Quiet i distinctly remember the demo showing it as a 'shoot this' option.
In the game, you press L1 to bring up a menu, such as knock or call D Horse (if he is your buddy). I guess with Quiet, you get more options like 'shoot this'.
The more you use a certain buddy in a mission the more things you can unlock for said buddy to do. For example D-horse started with only
just being able to call him wherever you are in the map. Recently, I unlocked the ability for him to take a shit and what's funny it's called "Do it(Defecate)" lmao.
EDIT: Another cool tidbit, if you don't shower for a while. All the blood and dirt will still be visible, even in cutscenes.