We always say what in it then discuss tools . Lets instead say what will we need .
First is water , then food ,medicine, shelter , potection , then infomation as what is going on - where to find food , water , shelter , areas to avoid , what might be comming your way. There might be a need for clothing , health care , tolit items, fire starting , first aid , good boots, ammo etc.
What would be a good list of needs ? Its not important which item its important to have some item to cover your needs and the needs must be IDed first .