The following guns were used in Tom Clancy's Chaos Theory:
Splinter Cell Chaos Theory (2005) Handguns Beretta 92FS Used by the People's Voice Revolutionaries and Panamanian guards.
Error creating thumbnail: File missing Beretta 92F - 9x19mm. FN FiveseveN Referred to as the 'SC Pistol'. Sam's standard issue sidearm. Is said in-game to be integrally silenced. It appears to be the original model.
Is fitted with a 'OCP device' which temporally disrupts electrical equipment.
Error creating thumbnail: File missing FN Five-SeveN (Original Model), 5.7x28mm. This model is no longer produced. Heckler & Koch Mark 23 Used by the National Guardsmen, as well as I-SDF & G-SDF troops.
Error creating thumbnail: File missing H&K Mk 23 Mod 0 .45 ACP IMI Desert Eagle Used by Doug Shetland at the end of the bathhouse and by General Jung, who is only seen in Co-op mode.
Error creating thumbnail: File missing Desert Eagle Mark XIX - .50 AE Chrome Silver Yarygin PYa Used by North Korean soldiers.
Error creating thumbnail: File missing MP-443 Grach, 9x19mm. Error creating thumbnail: File missing After spotting Sam, North Korean soldiers armed with Yarygin PYa open fire. Error creating thumbnail: File missing A discarded Yarygin PYa . Submachine Guns Heckler & Koch MP7 Used by the Displace International mercenaries as their standard 'handgun'.
Error creating thumbnail: File missing H&K MP7A1 with factory magazine and iron sights - 4.6x30mm. This MP7 shown in Autopistol configuration. Error creating thumbnail: File missing Two Heckler & Koch MP7 within a crate in the Lighthouse level. Heckler & Koch UMP-9 SMG Used by some Displace International mercenaries.
Error creating thumbnail: File missing Heckler & Koch UMP9 (note curved magazine) - 9x19mm Rifles AKM Used by a People's Voice revolutionary and the North Korean soldiers.
May possibly be a Type 56, but I cannot get a close enough look to tell.
Error creating thumbnail: File missing The ones in game seem to have synthetic furniture like the AK-103, but lack its muzzle brake. Error creating thumbnail: File missing A North Korean soldier holds one of the suspected AKMs in the Battery level CIS SAR-21 Used by I-SDF troops.
Error creating thumbnail: File missing SAR 21, 5.56mm NATO Error creating thumbnail: File missing A I-SDF operative with a CIS SAR-21 slung over his back in the Bathhouse mission. FN F2000 Tactical Sam's standard issue rifle. Fitted with either a 40 mm launcher, a shotgun, a '20mm Sniper attachment', or an ordinary handguard. Sights are usually a C-More Red dot sight, changing to a standard F2000 sight with the 'sniper attachment'. In game is said to be integrally silenced.
Error creating thumbnail: File missing FN F2000 Tactical with folding foregrip 5.56x45mm NATO Heckler & Koch G36C Standard rifle of the Displace International mercenaries, usually equipped with a red-dot aiming sight.
Error creating thumbnail: File missing Heckler & Koch G36C - 5.56x45mm Error creating thumbnail: File missing A mercenary drops his Heckler & Koch G36C as Sam grabs him from behind in the Bathhouse mission. Heckler & Koch XM8 Used by the South Korean soldiers and some National Guardsmen.
Error creating thumbnail: File missing Fitted with an Insight ISM-V sight. Howa Type 89F Used by the G-SDF soldiers at the Kokubo Sosho.
Error creating thumbnail: File missing Howa Type 89-F assault rifle with folding stock for Paratroopers - 5.56x45mm. Ruger AC556 Used by the Panamanian guards at the bank.
Error creating thumbnail: File missing Ruger AC556 Carbine - 5.56x45mm. Steyr AUG A2 Used by People's Voice revolutionaries.
Error creating thumbnail: File missing An Steyr AUG Special Receiver - 5.56x45mm. The AUG A2 is the military version of this. Error creating thumbnail: File missing A revolutionary passes Sam with his Steyr AUG A2 at the ready. Error creating thumbnail: File missing Here the heavily customized state can be seen very well. XM29 OICW Used by some National Guardsmen, and seen next to the bodies of a few South Korean soldiers.
Error creating thumbnail: File missing Late-model over / under Objective Individual Combat Weapon (OICW) 5.56x45mm & 20mm Launchers FN EGLM The launcher attachment mounted on Sam's F2000. Functions more like a FN303.
Error creating thumbnail: File missing FN EGLM, 40mm. Here seen in standalone configuration. Shotguns Unknown Shotgun An unidentified shotgun that can be mounted under Sam's F2000.
It appears to be a modified SPAS-12 with the grip and stock removed, as the barrel and fore end bears a strong resemblence to the SPAS-12
Error creating thumbnail: File missing Sam Fisher mounts the Shotgun under his FN 2000 . Machine Guns M60E3 Seen sticking out of a box of weapons in the first mission.
M60E3 machine gun 7.62x51mm NATO Error creating thumbnail: File missing The barrel of a M60E3 can be seen within a crate in the Lighthouse level. Degtyarev RPD Light Machine Gun Used by some North Korean Special Forces.
Error creating thumbnail: File missing RPD Light Machine Gun - 7.62x39mm Heavy weapons M61 Vulcan The M61 Vulcan is seen mounted in the turret of the fictional North Korean IFV's.
Error creating thumbnail: File missing GE M61 Vulcan 20mm Cannon XM312 Used as part of Displace International's automated sentry guns. Seems to have a higher rate of fire than the real one, and does less damage than you would expect from a .50 BMG weapon, killing the player no faster than any other automatic weapon in the game.
Error creating thumbnail: File missing XM312, .50 BMG Grenades The games resident frag grenade.
Error creating thumbnail: File missing M69 training grenade - an inert version of the M67 High-Explosive Fragmentation hand grenade. The real live version has a more brownish color and has painted factory markings on the body. 
