• Normal: Unchanged
• Hard: Unchanged
• Very Hard: FBI Swat replaces most Security Guards, FBI Shields replaces weaker Swat Shields.
• Overkill: FBI Swat replaced all "American" Security Guards. FBI Shields replaces basic Swat Shields
• Mayhem: GenSec Swats replace Security Guards, GenSec Shields replace FBI and weaker Swat shields.
• Death Wish: Same as Mayhem
• Death Sentence: ZEAL Units replaces ALL valid enemies.

(Gangsters, Bikers, Mobsters, and MurkyWater are immune. All replaced units acting as guards will patrol and have pagers. Incompatible with "Cloaker Hell Stealth", "Correct Difficulty Enemies", and maybe "ZEAL Cloaker on Death Sentence")

"How the new police force is better equipped to fight crime."
"The ZEAL units may be deployed as needed to protect the lives of citizens and government institutions where local police and FBI resources do not meet operational requirements."