- "Release dozens of Fireflies, nano-bots with super-bright LED strobes. Fireflies move to new targets when enemies die until they run out of power."
- — Description
Firefly Swarm (initially Blinding Swarm before being upgraded) is a Chaos cyber core in Call of Duty: Black Ops III. The upgraded version releases incendiary nano-bots, which will burst into flames on contact with an enemy. In Nightmares it is a Specialist Ability with three charges achieved via a Power Up.
- Hold Still! - (Bronze/20) - Kill 6 enemies affected by one Blinding Swarm or Firefly Swarm.