Story time! I was having serious trouble with a particular queen. She had at least 10 soldiers protecting her, and they were not happy with me stabbing her with my combat knife.
Out of desperation, I threw something flammable on the floor and lit it. I was trying to burn a few of them to death, but it turns out they don’t function well in smoke. As long as you heave breathing gear, you can just drop small bundles of thread and light them to completely render her guards ineffective. I assume they are blind and the smoke interferes with their sense of smell.
The same thing can work with zombies if you break line of sight and light a fire.