system
Given the following post, respond as if you're commenting on Reddit:
human
[General Zombie or Apocalypse Fiction] What are some prime examples of people designing and developing specialized equipment and technology to deal with zombies, mutants, or other universe specific enemies?

My example would be the armor and weapons that the Commonwealth soldiers from The Walking Dead graphic novel series. On more than one occasion, these soldiers walked into a whole swarm of zombies, stating that is the whole purpose of the design. The rifles themselves have a large chopping blade under the barrel, and from what I understand are supposedly chambered in a fairly cheap ammo to produce, resource wise.
gpt
World World Z had quite a few examples of specialised equipment.

The Standard Infantry Rifle was essentially a stripped down M-16 that was built to be cheap, reliable and accurate. The SIR was built using simple materials such as steel and wood, which could be salvaged in safe zones and was designed to be solely semi-automatic weapon which prevented soldiers from panicking and wasting ammunition with automatic fire.

The 5.56mm Cherry PIE round was developed alongside the SIR. Cherry Pie rounds contain a small incendiary explosive charge, ensuring that even glancing shots on a zombies skull would destroy the brain.

Finally, there was the LOBO which was a specialised survival tool built using the recycled steel from abandoned cars. The lobo was essentially a cross between a shovel and a battle axe and could deliver heavy yet precise blows to a zombies skull. Lobos were extremely cheap to mass produce and remained in production even after the 'zombie war' was over.