McKenzie Airbase Interior is the second mission in Syphon Filter 2, which is based in the McKenzie Airbase (located in Colorado, in the United States). Before the mission begins, Lian Xing has been transported to the airbase under the guise of a "terrorist" by The Agency, to be held until "FEMA" can continue further with her. Previously, she had been captured in Kazakhstan by Dillon Morgan.

Prior to Mission Start

Abduction in Kazakhstan

Before the Colorado Mountains mission, Gabriel Logan and Lian Xing along with the CBDC investigate the Missile Silo that Erich Rhoemer fired a nuclear missile from in Kazakhstan. In the surrounding Pharcom Warehouses they recover Pharcom data and personal files from Jonathan Phagan placed onto Data Discs, which could help them discover a cure for the Syphon Filter Virus that Lian is currently infected with.

The Agency, aware of the Black Baton attack on the warehouses and Logan's presence there, arrive in two Black Hawk Helicopters led by Dillon Morgan and Derrek Falkan, with Steven Archer piloting at least one of them. With them is several teams of Spooks with the mission of eliminating Logan and capturing Lian Xing along with the Data Discs, to prevent that data from landing in the SVR's hands. They manage to capture Lian (as well as a CBDC agent by the name of Dobson) while killing several others and evading Gabriel Logan in the process. Dr. Elsa Weissenger confirms that Lian is a match for being infected with the virus and Morgan orders a retreat, heading towards the McKenzie Airbase with her in tow before the Russians arrive.

With Steven Archer tasked with hunting down Logan and the Data Discs, the remainder arrive at the airbase where Lian and Dobson are taken in under the moniker as "terrorists" so that the Military Airmen don't become suspicious. The airbase itself is currently used to smuggle (in secret) Syphon Filter Virus infected Corpses to avoid security checks and customs, under the guise of "FEMA".

Secret Council

Meanwhile in Washington D.C., a secret meeting is being held between Lyle Stevens, Mara Aramov, Mr. Cochran and a man in shadow. Shi-Hao, a Chinese General seeking to force war with the Russians, is heard on the phone speaking to the group warning them that if he doesn't get his shipment soon there may be a "leak to the American Press". After hanging up the phone, the shadowed man simply comments on how unfortunate that call was before Mara and Stevens argue among one another for Erich Rhoemer's actions.

Aramov questions if Gabriel Logan has been dealt with and Stevens replies that the UN Peace Keepers had arrived not giving his men enough time. Mara concludes that this is another Agency screw-up and that their incompetence has been bringing them closer and closer to killing all everyone. Stevens mentions Thomas Markinson as his predecessor who wasn't in control while Mara claims that he was Stevens' man. He replies by stating that Rhoemer was hers and brings up Uri Gregorov whom she was supposed to keep away from the area. She scoffs at the suggestion, saying that the SVR wasn't under her control just like the Black Baton under Rhoemer.

The shadowed man says that's enough and states that they all have much at stake. Stevens goes on to say that Logan was their best operative with years of experience that would not make this easy, something that the shadowed man idly comments on. He says that perhaps they didn't understand what he was saying, that success is everything and directs his speech towards Mr. Cochran who begins making excuse after excuse involving the delays in getting plasma from Lian Xing. It's revealed that he was given Phagan's job as he promised to have Stage Two of the Syphon Filter Virus ready on time but sees that Cochran has failed, like Rhoemer and Markinson before him. While Cochran tries one last time to save face, Aramov impatiently snaps his neck and he falls dead to the floor while the shadowed man explains how Mara has proven her usefulness.

He goes on to state that Logan will be taken care of and the girl's plasma will be ready on time. Stevens tells him that he has an army on the way to Colorado and Xing is already in route to the airbase.

Inside the Airbase

Dillon Morgan arrives outside of Lian's room with Dr. Elsa Weissenger and an Unnamed Agency Doctor. An Unnamed Airman asks for their ID before Thomas Holman announces him and the rest as "FEMA" while also threatening to inform the airman's superior. He apologizes and leaves while Weissenger enters the room with the doctor, telling him to be careful as she expresses her concern that the virus has weakened her this quickly in the development cycle. She proceeds towards Dobson's room while Morgan heads to Jonathan Phagan's room and Thomas Holman goes to check on their shipment. Falkan suggests heading over to the F22's himself, but Morgan says he'll "deal with them personally".

Meanwhile, inside the room with the doctor, he says that two bags of plasma should be enough while stating she shouldn't feel a thing. Lian suddenly punches him in the face and he falls unconscious beside the bed, while she replies that "he's the one who won't feel a thing" while weakly standing up.

Summary of Events

Lian Xing is weakened due to the effects of the Syphon Filter Virus and needs to find an adrenaline shot. She sneaks out of her room and makes her way through the hallways avoiding Airmen until she comes across Derrek Falkan outside of a room that Dr. Elsa Weissenger exits. He asks if she's finished with "him", to where she replies that she gave him the shot and it will take a moment to go into effect. She wishes to check on Xing, however Falkan says she needs to go to Phagan's room right away. The two walk by and Lian makes her way into the room they were just in to take the shot. She looks on the bed to see Dobson and morns, asking why he didn't stay back when she told him to.

Bidding farewell to an ally, she makes her way further through the complex coming through the observation end of a room where Jonathan Phagan was being kept in a comatose state. Weissenger finishes extracting the plasma from Phagan, while Dillon Morgan insists on removing his life support. Weissenger tries to claim that he could still prove useful at her lab but Morgan reveals that his orders are to make Phagan disappear, lest the Government find Pharcoms CEO rotting away in this hospital room. He goes ahead and pulls the plug, with everyone exiting the room shortly thereafter.

Lian enters the room, taking a glance at Phagan before heading to a Restricted Area (where her Combat Gear is being kept). She notices an Unnamed Airman talking to Carter at the reception desk, saying he needs to get some fresh air with these government types looming about. He grows even more untrustworthy when he learns about several body bags being brought in and the place having been locked down tight. Carter buzzes him through and he moves into the lower level, while Lian sneaks under the window and into the back where she obtains her gear.

Mission Briefing


The McKenzie Airbase Interior takes place at night however the entire mission takes place within the medical wing of the base. That said, the environment is that of hallways lined with open gaps where one can hide to avoid detection (the gaps being there for doors leading to individual rooms). Exploration is limited due to restrictions on where you can go with no weaponry and the parameter in place of not killing any enemies (which are all innocent npcs) means everyone has to be tased if you wish to go anywhere.

The area itself is relatively small and the path you take to complete the mission makes this one of the shortest in the game.



  • Do not kill any airbase personnel
  • Do not allow yourself to be detected





Tricks and Hints



Main Characters Anton Girdeux  · Edward Benton  · Erich Rhoemer  · Gabriel Logan  · Jonathan Phagan  · Lian Xing  · Mara Aramov  · Thomas Markinson
Minor Characters Alec Kabanov  · Ellis  · Jenkins  · Jorge Marcos  · Pavel Kravitch  · Richard Erikson  · Vince Hadden  · Vladislav Gabrek
Enemies Georgia Street Terrorists  · Flaming Enemy  · Girdeux's Terrorists  · Pharcom Bodyguards
Organizations Black Baton  · CBDC  · Pharcom  · The Agency
Missions Georgia Street  · Destroyed Subway  · Main Subway Line  · Washington Park  · Freedom Memorial  · Expo Center Reception  · Expo Center Dinorama  · Rhoemer's Base  · Base Bunker  · Base Tower  · Base Escape  · Rhoemer's Stronghold  · Stronghold Lower Level  · Stronghold Catacombs  · Pharcom Warehouses  · Pharcom Elite Guards  · Warehouse 76  · Silo Access Tunnels  · Tunnel Blackout  · Missile Silo
Weaponry 9mm  · .45  · Air Taser  · BIZ-2  · C4 Explosive  · Combat shotgun · G-18  · Gas Grenade Grenade  · HK-5  · K3G4 Assault Rifle  · M-16  · M-79  · Nightvision rifle  · PK-102  · Shotgun  · Sniper Rifle
Gadgets Card Key  · Flak Jacket  · Flashlight  · Viral Antigen  · Viral Scanner
Vehicles UH-60 Blackhawk
Conflicts Washington D.C. Attack  · First Investigation of PHARCOM  · Destruction of Rhoemer's Base  · Sabotage of Rhoemer's Cathedral  · Kazakhstan Missile Incident
Transcipts Georgia Street  · Destroyed Subway  · Main Subway Line  · Washington Park  · Freedom Memorial  · Expo Center Reception  · Expo Center Dinorama  · Rhoemer's Base  · Base Bunker  · Base Tower  · Base Escape  · Rhoemer's Stronghold  · Stronghold Lower Level  · Stronghold Catacombs  · Pharcom Warehouses  · Pharcom Elite Guards  · Warehouse 76  · Silo Access Tunnels  · Tunnel Blackout  · Missile Silo
Main Characters Dillon Morgan  · Elsa Weissinger  · Gabriel Logan  · Jason Chance  · Lawrence Mujari  · Lian Xing  · Lyle Stevens  · Mara Aramov  · Steven Archer  · Teresa Lipan  · Thomas Holman  · Thomas Markinson  · Uri Gregorov
Minor Characters Carter  · Colorado Bridge Bombing Commander  · Davies  · Derek Falkan  · Dobson  · Eschelman  · Ferguson  · Gershon  · Imposter Gregorov  · John Ramirez  · Jonathan Phagan  · Kowalski  · Mr. Cochran  · Shi-Hao  · Thompson  · Unnamed Airman  · Unnamed Doctor  · Vince Hadden  · Vladimir Nedobryi
Missions Colorado Mountains  · McKenzie Airbase Interior  · Colorado Interstate 70  · I-70 Mountain Bridge  · McKenzie Airbase Exterior  · Colorado Train Ride  · Colorado Train Race  · C-130 Wreck Site  · Pharcom Expo Center  · Morgan  · Moscow Club 32  · Moscow Streets  · Volkov Park  · Gregorov  · Aljir Prison Break-In  · Aljir Prison Escape  · Agency Bio-Lab  · Agency Bio-Lab Escape  · New York Slums  · New York Sewer  · Finale
Locations Club 32  · McKenzie Airbase  · Rocky Mountains, Colorado
Terrorists Spooks  · Unit one
Multiplayer Abandoned Bank  · Catacombs  · Kazakhstan Warehouses  · New York Garage  · New York Slums  · Park Hedge Maze  · Park Jungle Gym  · Pharcom Expo Center (multiplayer)  · Rooftops (multiplayer)  · Small Village (multiplayer)
Weaponry .45  · 9mm  · 12 Gauge  · Air Taser  · BIZ-2  · C-4 Explosive  · Combat Knife  · Crossbow  · G-18  · H11  · Hand Taser  · HK-5  · Incendiary Grenade  · K3G4 Assault Rifle  · M-16  · M-79  · Nerve Gas Grenade  · Nightvision rifle  · PK-102  · Sniper Rifle  · Tear Gas Launcher  · The Flame-Thrower  · UAS-12  ·
Gadgets Binoculars  · Camera Scrambler  · Cellular Modem  · Flak Jacket  · Flashlight  · Nightvision Goggles  · Transponder Locator
Vehicles C-130 Hercules  · F-22 Raptor
Conflicts Raid on the C-130 Wreckage  · Escape from Mackenzie Air Force Base  · Second Investigation of PHARCOM  · Meeting with Uri Gregorav imposter  · Rescue of Uri Gregorav  · Search for Syphon Filter antidote  · Escape from New York City
Main Characters Gabriel Logan  · Lian Xing
Minor Characters Ellis  · Nigel Cummings  · Silvers
Missions Hotel Fukushima  · Costa Rican Plantation  · C5 Galaxy Transport  · Pugari Gold Mine  · Pugari Complex  · Kabul Afghanistan  · S.S. Lorelei  · Aztec Ruins  · Waterfront  · Docks Final Assault  · Convoy  · The Beast  · Australian Outback  · St. George Australia  · Paradise Ridge  · Militia Compound  · Underground Bunker  · Senate Building  · DC Subway
Weaponry .45  · 9mm  · Air Taser  · AU300 Heavy Barrel  · BIZ-2  · Combat Knife  · Crossbow  · Falcon  · G-18  · H11  · HK-5  · K3G4  · M-16  · M-79  · MARS  · Nightvision rifle  · PK-102  · Shotgun  · Spyder  · Tear Gas Launcher  · UAS-12
Multiplayer maps Afghanistan  · Computer center  · Izmalavio Park  · McKenzie Air Force Base  · Paradise Ridge  · Rhoemer's Stronghold  · S.S. Lorelei  · Training Simulator  ·
Multiplayer characters Agency operative  · Anton Girdeux  · Bag Lady  · CBDC operative  · Corpse  · Elsa Weissinger  · Erich Rhoemer  · Evil scientist  · Gabe Logan  · John Ramirez  · Jonathan Phagan  · Jorge Marcos  · Lawrence Mujari  · Lian Xing  · Mara Aramov  · Military Police  · Monk  · Ninja Gabe  · Russian Bodyguard  · Spook  · SWAT Officer  · Teresa Lipan  · Terrorist  · Unit One  · Uri Gregorov  · Virtual test subject  · Vladislav Gabrek
Minigame types Assassination  · Biathlon  · Demolition  · Elimination  · Thief
Minigame maps China Exhibit  · Colorado Bridge  · D.C. Subway  · Military Base  · New York Slums  · Phagan's Warehouse  · Rhoemer's Fortress  · Washington Park  · Whispering Woods Mortuary
Conflicts Assassination of Shi Hao  · Costa Rican Incident  · Investigation of Pugari Complex  · Soviet-Afghan War  · First Destruction of the SS Lorelei  · Investigation of Erich Rhoemer  · Abduction of Elsa Weissenger  · Assassination of Commander Silvers  · Paradise Ridge Incident  · Attempted Apprehension of Mara Aramov
Main Characters Gabriel Logan  · Lawrence Mujari  · Lian Xing  · Mara Aramov  · Teresa Lipan
Minor Characters Alima Haddad  · Andre Proust  · Elsa Weissinger  · Gary Stoneman  · Gina Hunter  · Imani Gray  ·Jean Fournier  · Maggie Powers  · Mikhail Pulikovsky  · Mikhas Ivankhov  · Oleg Petrenko  · Rodion Ushakov  · Soren Masson  · Vladik Savin  · Vladimir Zhidkov  · William Crusher  · Yegor Leonov  · Yuschenko
Missions IPCA European Command: Training Centre  · Carthage, Michigan: Quarantine Zone  · Carthage, Michigan: Warehouse District  · Carthage, Michigan: Carthage Mall  · Pescara, Italy: St Cetteo's Square  · Mazyr, Belarus: Krivorozhstal Mill  · Mazyr, Belarus: Belaya Vezha  · Tash, Kumyr, Kyrgysztan: Saydahmat's Village  · Sana'a, Yemen: Arms Bazaar  · Sana'a, Yemen: Taherir Palace  · Minsk, Belarus: International University  · Samaschki, Chechnya: Ivankov's Home  · North Atlantic: Lorelei Salvage Rig  · Tokyo, Japan: Murukawa Tower  · Taguang, Myanmar: Irawaddy Basin  · Zurich, Switzerland: Niculescu Funds Tower  · Budva, Montenegro: Niculescu's Villa Estate  · Kiev, Ukraine: Chechen Terrorist Base
Organizations IPCA
Weaponry Beta Weapons  · C11  · China Type 56  · Combat shotgun  · FAL  · FAMAS  · G 33E  · GAWS 12 gauge  · K-BAR  · M1 Super 90  · Riot shotgun  · Shot Defender  · ShotHammer  · Silenced . 44  · Slug Defender  · SlugHammer  · SPA-12 shotgun  · SPA-15 shotgun  · Stava M70 B1  · SSG 550  · Sweeper 12 gauge
Conflicts ALA Assault on Carthage  · Assassination of Dimitri  · Sabotage of CDP Operations  · Transaction on Kyrgysztan  · Assault on Yemen  · Raid on Jandran's Labs  · Investigation of Chechen Genocide  · Second Destruction of the SS Lorelei  · Assault on Murukawa Industries  · Recovery of Imani Grey  · Raid on Meta Global Headquarters  · Raid on Niculescu's Estate  · Showdown with the CDP  · Assassination of Mara Aramov and Elsa Weissenger
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