My focus is in getting back out of wherever I go and for that a tire tube, air pump, tire irons, Hi-Lift jack, bailing wire, duct tape, electrical wire, electrical tape, vice grips, hatchet, snatch strap, come-along, rope, gloves, shovel, VOM, and a few tools are all I need.
I don't take a firearm as in my 45 years of back country I never got that desperate that I would even think of shooting myself or my companions. I have been tempted at times to shoot a dirt bike or two and an occasional generator. Worst case I want to have enough food and water and a back pack so we can hike out.