This is the first level of Syphon Filter: The Omega Strain (ignoring the training course). As a rogue agent of the IPCA, "Cobra", one must battle numerous waves of terrorists who invaded a secure location in Carthage, Michigan, where the local authorities are also fighting them. The player has to protect CHA officers while collecting samples, and then scan them to download the data. Eventually, the player is tasked with entering the subway and neutralising one of a few leaders of the terrorist group, initially known simply as the ALA.

Plot synopsis

The game begins its first cutscene with a shot of Niculescu's funds tower in Zurich, Switzerland. Mara Aramov is meeting with Mihai Niculescu. They talk about how the latter misses the former, and touch on the topic of how Ivankov has gone into business for himself. Aramov counters that the man is another Stalin, and says she can do nothing. Niculescu, however, evens the score by reminding her they are alike: they use things until they are worn. Aramov is convinced: she will deal with Ivankov if she can find him.

The scene then cuts to St. Cetteo's Square, in Pescara, Italy. With Mihai giving a voiceover, we learn that a new virus appears rather unstable, but Ivankov does not seem to care. He has somebody making the rounds, selling the virus. They don't know where he's going to next, but they'll know where he's been.

The camera then switches again, to the quarantine zone in Carthage, Michigan. Lawrence Mujari gives a report on how events are becoming complicated, and that the Carthage Health Authority is not co-operating. Mujari is waiting to interview Richard Broussard, the CHA director.

We cut to the IPCA command in Berlin, Germany. Mujari's report continues about how they may all be in grave danger should his suspicions prove correct. Before he can continue, a gunshot rings out behind him, and the screen goes dead. Teresa Lipan announces that this was his final report, and his cell phone went dead four hours ago. Logan takes over, saying that Imani and a team are going to Carthage to locate Mujari; Stone is assigned to the outbreak in Italy; while Lian and Gabe head to Uganda. Lipan reminds everybody to update her if they get information, and Imani tells Stone that he is included. Alima Haddad tells Teresa and Imani that Stone will pipe in, to which he asks 'What?' and Alima replies 'Leave Imani alone.'

Imani asks the player why the latter is standing around, and reminds one to get loaded up with weapons. Gabe gives a final reminder, telling everybody that this threat is growing and they are the only ones who can stop it because they were selected to join the IPCA. In the next cutscene, we see Imani and "Cobra" being dropped off by Alima; the former reminds the player to let her talk. Richard Broussard walks out from a bank, arguing with somebody on his cell phone; and Imani runs towards him, announcing her identity. Broussard counters her by telling her this is a restricted area; Imani asks him whether he's seen 'this man', to which the former replies 'I don't know anything'. At that moment a car bomb explodes, almost killing both; Imani draws her pistol, while Broussard sprints off to safety. Imani asks Teresa to find out what's going on: the entire area is going to hell. "Cobra" is told that Imani will head off to find Broussard, so the player must kill nobody, at least on her watch, and the mission begins proper.

The level begins from the ending of the previous cutscene. Imani is chasing Broussard into the subway, and terrorists begin flooding the inital area. The player must protect the CHA officer and fend off a wave of enemies until one receives the message 'CHA officer saved'. At this point, bio-data gear located opposite the bank must be acquired for the mission to continue. Once back in the initial area, another wave of terrorists swarm the player, but can be ignored. There is a water sample just below the room with the bio-data gear.

The agent is tasked with entering the underground mall, at which point a number of suicide bombers can be seen (they will detonate their explosives if the player goes too close, or kills them). Another water sample waits at a drinking fountain, and when it is collected the agent can return to ground level using another staircase. This location has a couple of CHA officers battling terrorists.

The third water sample is directly in front of the player, however the CHA officers should take priority. When the enemies are down, the player can collect the sample, and turn left to the decontamination tent or turn right to grab a HAZMAT uniform (which protects one from DormaGen and Sarin gas). Going into the tent without the uniform will trigger a CHA officer to fire on the player, but this can easily be countered with smoke grenades or a non lethal KO on the officer. The player has to perform an autopsy on a body inside the tent, before heading outside to the right room.

The next room will have a couple of tunnels which the player can crawl through to reach a third location with a CHA officer and another C4 trigger man. The CHA officer should be neutralised with nonlethal weapons to make things easier; the player can then secure this location until the terrorists are cleared. Another tunnel brings one to a scientific lab with a scanning machine and power generator, which must be turned on for the mission to continue. The player must then insert the samples into the scanner and return to the generator room to fend off enemies for 1 minute, thus allowing the data to be downloaded.

Another tunnel leads one to the next area with the last CHA officer. The car will explode if it takes too much gunfire, so the player is advised to stun the CHA officer. Before proceeding, a fourth water sample is in this location, and when the terrorists are cleared, a vent will bring one to the subway. The last water sample is in here.

The player can kill enemies to find night vision goggles, and is now tasked with crossing the tunnel to neutralise Proust, the terrorist leader in this location. A power switch must be deactivated - this can be done either by shimmying over a pipe, or simply by walking to the upper level. Once the train track is turned off, the player must drop down into the tunnel and run to the other end of the subway station, where a food court can be seen. This is where Proust waits. He proves to be a worthy opponent, so headshots or grenades are very helpful. When he is eliminated, the mission ends.

The ending cutscene shows Imani and "Cobra" inside the subway tunnels; the former will chase Broussard and the latter, Masson's thugs. Hopefully, the terrorists will lead them to the warehouse where Broussard and Mujari are held. Imani reveals to the player that she never trusts any new person she's working with, but she makes an exception this time.

The scene switches to Kiev Ukraine, inside the Chechen terrorist base. Mikhas Ivankov meets with Vladimir Zhidkov, with the latter telling his superior they are prepared. Ivankov is going to Belarus to close the chateau; he tells his subordinate to shut down every operation when he returns. Zhidkov is sent to the Krivorozhstal mill, the last of Niculescu's operations, and is required to bring his best men: for Ivankov tells him there is no stopping this once it goes rampant.

Once Zhidkov leaves, Mikhail Pulikovsky approaches Ivankov and complains that they are giving up a lot of money, but his superior is intending to go through it. The plan was thought through from the beginning. Ivankov asks where is Yushchenko, to which he gets the answer: he has returned from Carthage, is going to Kyrgysztan and then to Yemen. Pulikovsky ends by saying the funds have transferred as planned.

Ivankov asks 'any word of her?' and gets the response: she is locked away at Guantamano, and will never be released. He tells Pulikovsky they will be looking for them, and there is much work to be done before they can be found.

A bonus audio tape reveals that Broussard struck a deal with the ALA to give them a virus, but backed down because many people who came into contact with said virus were killed. However, the terrorists acquired the virus anyway and assaulted the city.



First step is to protect the CHA officer.

   Just kill all the enemies that appear, really fast.

   [If you accidently shoot the CHA officer, he will fire back.

   He'll automically die if you leave the area where he is 

   fighting w/o first saving him.]

b) Climb up the ladder (near W & V).

   There's a Key Pad here.  

   You can either shoot the keypad or get the key card from the 

   CHA officer down the hall.  Shooting it will alert the CHA

   officer, so you had better move quick.  If you're solo, shoot

   it.  When on a team, stun the CHA officer and take his card.

   If you shoot it with a silenced weapon, the CHA officer will

   not notice you.

   [Taking the bio-data gear will spawn more enemies on the

   streets.  When you go back down there, just run past them.

   You may have noticed the "teammate needed" message appear

   when you're near the truck.  That's for online play.  The

   adjacent building has C4 you can use the blow up the gate

   that leads to the subway.]

c) Go to Map 1.3 afterwards

   [If you're not going for par, and have both smoke grenades

   and a Stun Jack, you mind as well try to get the MDS A4.

   It's in the CHA tent, but there's a CHA officer inside.

   He'll be hostile, so throw a smoke grenade before

   you exit the vent hose so you can use the Stun Jack w/o

   getting harmed.]

Take out the two guys near the shotgun box, then get the weapon.

   [Since the enemies here drop shotguns, you don't have to get it

   from the box.  But, the ammo in the box really helps.]

e) Grab the water sample

   [Sample is from the drinking fountain]

   [There are two C4 trigger men near this point.  You can avoid 

   the first one by just going for the water sample and taking

   that route to the next area.  You'll see the other one

   after you grab the sample.  The store that he is going away

   from will be the one that explodes.  Either try to kill him 

   quickly or hug the corner when you're making the turn to avoid

   the C4 explosion.]

Two guys will see you and start shooting.  Eliminate them

h) There are two more guy inside the building.  Eliminate them

i) Grab the Water sample

   [Sample is from the water fountain]

j) Get your Stun Jack out and go inside the CHA tent.

   Stun the Officer inside, and get the tissue sample

   [It helps to throw the smoke grenade both before you enter

   the tent and while you're going through the decontamination

   process at the tent's entrance.  This will prevent the CHA

   officer from firing at you.]

k) Go to map 1.5; note that there is a bio-suit on the way.

   Technically, you're supposed to wear it and then get the 

   tissue sample, but you really don't have time for that.

   [The CHA HAZMAT suit will protect you from both DormaGen and


 A CHA Officer will be in combat.  Again, kill and defend.

m) Turn the generator on.

n) Scan the tissue sample at the scanning station, then return

   immediately to the generator and protect it.

   [Two enemies will enter the area via the entrance you took,

   so be read to turn around and kill them.  The others will

   will come from the building roofs in front and back of 

   your position.]

o) Protect the CHA Officer in the next area

   [Make sure you don't get too close to the car, as it'll

   probably explode from being shot]

p) Get the water sample

   [Sample is from the fire hydrant]

q) Climb over the wall and enter the vent

Take out the enemies and grab the final water sample.  One of the

   enemies will drop a NVG.

   [If you didn't get the NVG here, you can get it from a box later

   on - point N on the map]

s) Turning left at point F leads to the shimmy route.  You'll have to go

   up the stairs, take out the guard and shimmy over the tracks to the

   power switch (ignore the other enemies shooting at you).  After you

   get the power, just roll on to the train and then the tracks.

t) If you go forward at point F, you'll have to take the stairs that 

   go beneath the tracks, and then work your way up to the power switch.

u) Either way, follow the tracks afterwards (run past the enemies).  When

   you arrive at the train stop, follow the stairs up to Proust and 

   take him out.  Sneak and try to head shot him from an angle.


Normal mode

Team par with speed


  • It is possible to complete this mission within par time with only the Scorpion and Stun Jack.
  • If the player does not rescue CHA officers by killing enemies until the heading 'CHA officer rescued' appears, the officer will automatically die.
  • If the player fires on the CHA officer with a lethal weapon, the local authorities will return fire.
  • If the player acquires C4 from a building in the starting area, he can get to Proust without having to go through the subway.
  • The jump glitch allows one single person to get Broussard's laptop without requiring a team mate. This can also be done in Belarus 2 (destroying the bridge), Yemen 2 (destroying the Scud missile), Myanmar (collecting the flight black box) and Ukraine (the missile mechanism).
  • This mission shares a few common similarities with Georgia Streets in Syphon Filter: the player must help HAZMAT-suited personnel battle terrorists; the player later enters a subway station; one traverses different areas; a train explodes and derails.
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 Search for Data Discs  · 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  · 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