To survive the winter, you had to be preparing all year. I should say if you want to be confortable. Canning food, making caches,storing fuel and wood supplies,thats if you'll be living in a cabin or a guide tent with a stove. a 6 month supply of fresh water and at least two pair of good winter boots, and many layers of protective clothr=es and supplies. ammo stock piles for hunting and ammo stock piles for protection. all you wilderness survival gear and you'll need to double this for every person with you. A man who is confortable with his ability to stay out in the field or the wilderness for long periods with automatically do better. In other words a person who hunts and trains for a life without the luxuries of today has a better chance in a survival situation. Your militia training will help you in all these areas, but a life in touch with the area you are intending to be in is invaluable. That goes for urban members also. You still need all the suviving gear plus a plan for your urban retreat, and an escape rout if it fails. urban members will also need the same abilities to survive out in the field, if they have escape the cities.