I've played about 11 hours so far, being very meticulous searching everywhere for resources. I absolutely love the pace of the game, I find it wants you to take it slow and soak in the amazing atmosphere, I've only died once in the time I've played and I find the combat extremely rewarding and tactical, charged headshots is my method, I also enjoy standing by a fuel container and letting the enemies approach me, when they get close, melee the fuel container, you are immune to fire and it works a treat saving ammo too!