Also in Skyrim i think there should be a "survival" mode that doesnt exactly makes enemies harder, but forces you to do necessary things for survival. I think the more time you go without eating or drinking your fatigue should slowly go down. Eventually you would collapse, this would be bad for beginner players so first time you collapse you would be rescued by a passing survivalist who could teach you techniques. There would be many things that you would have to do such as boil water, cook your food, and sleep in a real bed everyonce in a while. I think that fatigue really needs to be overhauled. It shouldnt be you swinging power be more of your life power. I think features like this would make the wilderness of skyrim a whole lot more of a challenge, and in my eyes a whole lot more rewarding.
Please post your ideas about survival techniques and add some if you can think of any.