Depends if the area you want to survive in is urban or rural.
Urban:lightweight long gun(black gun)with aprox 100rds ammo,preferably a common cal.Resupply while surviving,what they call:live off from the land''.
Water and water purifying tablets.A good flashlight,a good knife,some high protein food in dried form.Make some friends that are also well supplied so as not to have to split your limited grub.
Rural:A long gun with same as in urban equipment plus a handgun in .22 and 100 rds of ammo for small game.Add 2 Bic lighters,at least 50 ft of propylene rope,some large plastic 6mm for shelter,an hatchet and if you still can carry it,a good sleeping bag or a couple wool blankets(wool will keep you warm even when they're soaking wet).
In both situation,don't forget to bring along a lot of.....luck!