This is a game where you need to take the difficulty levels seriously and play on Easy if it's your first time. Work your way up to the harder modes. Master the mechanics first and dedicate yourself to playing through it a couple times if you want to beat it on the hardest difficulty. It's worth doing for this game since the level design, interactivity, and combat are all incredibly well-done.
and the campaign is pretty good too, save for the stealth sections One suggestion: Play on the easiest difficulty for a first playthrough since it's more fun regarding enemy behavior (higher stagger rates when shot).
