That's one of the interesting aspects of this game. Even as someone who usually loathes MMO's and avoids them like the plague, I can respect the care that is being put into this. The fact that you have to think about every single action you take and whether or not it will alert your foes to your location adds a chess game like play style to the situation. How do you complete your missions without revealing your location? Are your enemies breathing down your neck without your knowledge? That kind of thing makes it a very multi layered game.