I think you have right a little. I saw the gameplay which during 50 minutes on YT and for me in this game we don't need kill everyone. The most important is possibility to choice weapon and ammo before leave our cawe. Is nice to see how big liberty we have.
And there's good news for people who don't like sniping - you can play the whole game the way of the warrior. I think is completely stupid, but if you want go ahead :)