The point in Crysis is to play it the way you feel is right. For you, I can understand, I've played all MGS games and yes, I mostly play stealth. But the thing with Crysis is, you've been given a suit which can make you a badass tank, or a silent ninja. It's your decision at the end of the day to play however you want. This is what makes Crysis.
I'll be doing stealth playthroughs of this game when I get it on Friday.