I thought this was suppose to be a 3rd person action shooter game not a stealth game. Why does every level have a sneaking part? Yes, you can pewpew pass them, but then they will be 50 enemies shooting at every direction. And the shooting/aiming sucks ball.
Well, you can't really have stealth games without some other element. Like MGS is a TPS and stealth game. Hitman is a TPS and stealth. Dishonored is FPS and stealth. I mean the list of shooters with stealth goes on. With that said, certain games have better stealth mechanics than others.
Very casual stealth, just normally use it to get a head start and you usually get some bonus weapons from stealth take outs before the inevitable shoot out gets going. That said there were a few bits later on a crushing play through of Uncharted 2 where I managed to avoid a couple of fire fights by stealth killing everyone to stop reinforcements coming, but it was optional.