First and foremost, this game is not for little babies, it doesn't care about your feelings and will test your confidence. The game will give you everything you need, but wont hold your hand. You need to consider that every change to the world stays as is, you break a pot, it stays broken, you leave a health or ammo pick-up behind, it will stay there, even if you leave the level and come back. You need to conisder everything, your saves are an item, so you need to use them tactically, as well as the one time use save stations which re-fill your health. Dont just charge into every room, and on top of conisdering all of these things, the game also demands a high level of skill and will not let you get cocky. I played on hard first play, which is quite challenging, but I'm assuming normal won't be a cake walk either. If you have what it takes, you will find an extremely fun chunky shooter, oozing with atmosphere and lore. This is by far one of, if not, the most impressive use's of the quake engine I have ever seen, this game is beautiful, with incredibly interconnected level design which have a great sense of depth and verticality to them. The weak will find no pleasure here, however, fortune and glory favors the brave.