Heckler & Koch G11
Assault Rifle



I (H11)
IV (C11)

Magazine/ Capacity


Max Rounds

300 (50 / 250) - H11
150 (50 / 100) - C11 Standard
200 (50 / 150) - C11 Increased Ammo Upgrade


4.73x33mm Caseless Ammunition




Syphon Filter 2
Syphon Filter 3 Syphon Filter: The Omega Strain
Syphon Filter: Dark Mirror
Syphon Filter: Logan's Shadow

The Heckler & Koch G11 is an advanced assault rifle prominently featured in Syphon Filter series ever since it's first inception in Syphon Filter 2 as the H11.

From Syphon Filter: The Omega Strain onwards, it's name was changed from 'H11' to 'C11' (the designation which is still used in the latest titles).

Syphon Filter 2 / Syphon Filter 3

The H11 fires a caseless round specifically designed for the weapon, the round's compact design allows for a large magazine capacity, and the lack of a casing means that no ejection port is necessary. With a bullpup layout, The H11 comes equipped standard with a 1x optical sight.

—Syphon Filter 2 Weaponry Screen Description

The G11 is presented in the PlayStation 1 titles as the H11, a special assault rifle with a large 50-round magazine and a 1x telescopic sight for accurate shooting at longer ranges (in the instruction booklet the weapon is even called a "sniper rifle"). Though it's damage rating is classified as I (one) in the one to five damage scale (one being the lowest and five being the highest), it's extremely rapid fire rate (rated 5) will allow for enemies to be taken out quite rapidly (at the expense of a fast ammo consumption if the player does not fire in controlled bursts).

The weapon is typically hidden (some of these weapons will unlock extra Multiplayer content after being picked up). The H11 is also used by certain enemies in the later missions of both Syphon Filter titles (most notably by Agency Operatives in Syphon Filter 2 and by Mara Aramov associates in Syphon Filter 3).

Syphon Filter: The Omega Strain

This weapon is the product of decades of research and is one of the most advanced weapons ever made. The main demand behind it's development was the need for a rifle with a high hit rate. The C11 uses specially designed caseless ammo that consists of a ball round imbedded into a solid propellant. Because of this the C11 can fire a 3-round burst before the rifle has a chance to recoil. This ensures the entire burst will hit their mark exactly where the user intended. The IPCA version of the C11 comes preset to 3-round burst, has an integral scope and has a 50-round magazine capacity.

—Omega Strain Equipment Screen Description

Included in Omega Strain as the C11, the weapon has an increased power rating (IV) and due to it's specific characteristics (extremely fast fire rate, great stopping power and fast automatic target acquisition) alongside it's unique look has made the C11 one of the most favored assault rifles in Omega Strain.
G11 - C11

The G11, as seen in Omega Strain (aka 'C11').

Similar to the H11 in the previous titles, the C11 is also used by certain elite enemies in some circumstances (enemies equipped with these weapons are some of the deadliest). It's scope haves three zoom levels and can be used for quick and easy head shots.

It's unique, caseless ammo, is exclusive and cannot be transferred from any other weapon in game, making it's ammo supply rather limited, in addition, unlike the weapon description, the burst mode won't unfortunately allow for the projectiles to hit the same mark (because the weapon recoils after the very first shot is fired, making the other two projectiles hit different locations).

The weapon is an unlockable and can be equipped in the mission Equipment Selection menu after the United Nations Peace Award medal is received (by obtaining all the components which are necessary to cure the Omega Strain). The amount of carried ammo can be increased from the standard 150 rounds (50 / 100) to 200 rounds (50 / 150), after the Field Efficiency Expert special rating is earned (increasing the amount of carried ammo by the player for all weapons).

Syphon Filter: Dark Mirror

In Dark Mirror, the C11 is a usable weapon, being mistaken as C11 as was the case in Omega Strain. It fires in 3-round bursts, but can also be configured to fire full auto or single-shot. It is unlocked by gaining the second Combat Knife Specialist award. It uses the same scope as Omega Strain. Because it can now fire fully auto, and has 50 rounds, it is much more popular than its OS counterpart.

Syphon Filter: Logan's Shadow

In Logan's Shadow, the C11 is also usable. Enemies may use it in the missions 'Powerless', 'Disintegration' and 'Leading the Blind'. Just as in Dark Mirror, the combination of having 50 rounds and being full auto makes it a lethal weapon for combat engagements at any range. It is unlocked by gaining the third Combat Sharpshooter award.


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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