i have swords and crossbows and during a zombie apocalypse i'd make my way to costco. humanity is not an issue, i will run you over unless you're what i'm looking for and uninfected. First step after that, kill the costco-goers i don't need. I need all the supplies, cover everything outside in concrete get as much water as possible. should be a lot in costco. Sweep everywhere in the store. Cover roof in solar panels. always have crossbow and trenchspike. destroy regular staircase and replace with ladder also clear out high storage spots and place crossbows there.