oldschool zombie movie formulas just by guess some of the tools would be.
executioner wasp stings or other venoms combined with devils trumpet, methamphetamine, and barbiturates also fentanyl there could also be gene activated stuff for survival like mothers instinct and adrenaline enhancers also awakened pig genes that eat faces.
new age zombies
implantable non removable microchips that reward for eating also tagging others you could have resupply bags drone delivered with injectors use 2 or more for anti tamper or limb removal also a toxin with release mechanism. could deliver high frequency or stimulate the brain with digital drugs or actual.
another method would be to attach money to reward from an object recognition system also verify system maybe a witness like in the movie nerve.