Snake's voice actor's name shows up on the screen upon Pliskin introduction, the plot-twist is for Raiden, not the player and the game never acts like it's trying to hide it (Pliskin running around wearing a box and him butting in when Stillman is about to describe Otacon)
(Trying to pretend like I’ve read Don Quixote but mixing him up with Machiavelli and also getting a lot of other stuff wrong in my head) Well basically the point of the book is you gotta do what you gotta do