United Nations Anti-Terrorist Coalition

The United Nations Anti-Terrorist Coalition, or UNATCO is a branch of the United Nations supposedly created as a response to the growing threat of international terrorism. It is actually a police force for Majestic-12 and is used as their main influence on the population of the United States. Many of the major characters were members of UNATCO, including the Denton brothers, Jaime Reyes, Sam Carter, Alex Jacobson, Anna Navarre and Gunther Hermann, but, depending partially on the player's actions, they died, were kicked out or defected, due directly or indirectly to UNATCO's conspiracy with Majestic-12. The headquarters was established in an old bunker on Liberty Island, supposedly as a response to the bombing of the Statue of Liberty. At first, this was believed to be a Silhouette attack, but as one progresses through the game, one increasingly realises that Majestic-12 may have been the culprit after all.

The director of UNATCO in the first few levels of the game is Joseph Manderley, but after the defection of both Denton brothers, Walton Simons takes full charge of the organisation, due to Manderley's inability to control his subordinates. To further compound the conspiracy between UNATCO and MJ12, there is a vast MJ12 research facility located beneath the UNATCO HQ bunker. The entrance to this facility is located behind UNATCO's medical lab. On your visits to UNATCO HQ prior to being held prisoner in the MJ12 complex, this entrance is inaccesible, but upon your escape from the complex, the door can be opened.

UNATCO and Non-Lethal Force
Despite being a peace-keeping organization, UNATCO does not teach its agents to use non-lethal force; some of the troops during the Hell's Kitchen shootout are given Gas Grenades by Paul, but believe they are useless and are very willing to give them to JC if he approaches them. Also, Anna Navarre will be disappointed in JC for not killing the NSF troops if you choose to sneak into Castle Clinton. Only Sam Carter seems to see value in using non-lethal force; he will reward JC if he doesn't enter Castle Clinton through the front and kill everyone.

UNATCO Troops
UNATCO Troops can be found throughout the player's stay in New York City, but will only attack after the player sends the NSF's signal. At the start of the game, UNATCO troops will be armed with 10mm Pistols, and will gradually switch to Assault Rifles. By the time JC sends the signal, they will only be armed with Assault Rifles. UNATCO troops wear green helmets, green vests and grey pants and shirts. UNATCO agents, however, are allowed freedom of clothing. Some UNATCO troops have been revealed to be antagonistic towards the organisation in some way. Although most UNATCO troops are hostile towards Paul's methods and defection, Corporal Collins (the first troop you encounter in the game) seems to stand up for Paul, no matter what Paul has done. Tech. Sergeant Kaplan has been revealed to engage in theft from UNATCO's armory, storing the spoils in the sub-floor in Alex Jacobson's office.

Strategies
Fighting UNATCO troops should be treated like fighting Assault Rifle-armed NSF troops, but be aware that UNATCO troops are more likely to use LAMs.

Like all humanoid enemies, UNATCO troops can be rendered unconscious with two to three shots on the back from the Riot Prod.