Syphon Filter 3
The following weapons appear in the video game Syphon Filter 3:
The player begins most missions with the Glock 17, mounted with a silencer.
Desert Eagle Mark XIX
The Desert Eagle, or the 'Falcon', its in-game moniker, is a hand cannon that can be found in Hotel Fukushima. The weapon is used by Shi-Hao's bodyguards, leader of a rogue Chinese army revolutionary group, who are making a deal with a cell of Japanese terrorists.
Its a particularly weird choice for plainclothes bodyguards to use a Desert Eagle for concealed carry, given how impractically large it is and general unwieldiness for the ranges it's expected to operate in.
The Colt M1911A1, another heavy-hitting pistol, appears in the game.
The Glock 18 is a fully automatic machine pistol used by Aramov's thugs in Senate Building and DC Subway.
Maggie Powers and Gabe Logan are seen with low-detail handguns during the attempt to scuttle the Lorelei. Although judging from the shape, it appears to be based on the a Glock pistol.
The ARES FMG is seen in the hands of Aramov's goons.
Heckler & Koch MP5SD
Sa. Vz.61 Skorpion
The Skorpion can be used during the scuttling of the Lorelei.
Daewoo USAS-12 CQ
The USAS-12 can be used in the game; it firstly appears in 'C5 Galaxy' when Gabe takes matters into his own hands and tries to exact revenge on behalf of Ellis during Erich Rhoemer's escape from the Costa Rican plantation. He ends up doing a similar thing to what he did to Jason Chance in the previous game: use an automatic shotgun to drive Rhoemer out from the cargo bay. The weapon can be acquired again in 'Aztec Ruins' but due to the presence of the G11 and various other rifles, it is somewhat less useful, but still invaluable thanks to the ruins' abundance of tight corridors.
Heckler & Koch CAWS (Close Assault Weapons System)
The SPAS-15 can be found in the Waterfront. Bizarrely loaded with 'fragmentation' rounds that explode on contact, making an already overpowered weapon even more damaging.
The weapon is available in multiplayer, and the idea of an automatic mini-grenade launcher with pin-point accuracy that can kill you with a single hit is as overpowered as it sounds.
Mossberg 590 Compact Cruiser
A generic 'shotgun' can be used. It is similar to the Mossberg 590 Compact Cruiser.
Lian Xing can procure the Steyr AUG weapon during Kabul, Afghanistan and when she captures Elsa Weissenger. Another one can be found in the final level, when Gabe confronts Aramov in the subway, and is needed to safely neutralize her without harming her hostage. The weapon can only fire in single shots.
The telescopic x1.5 sight has been depicted as having a fictional "X-ray" function (a bit far-fetched for a slim optic like this to have any kind of vision-augmenting features in general) that can see through certain surfaces. Its also equipped with armor-piercing ammunition, which allows it to dispatch targets through walls.
Lian attempts to "make like John McClane" with the AUG.
Heckler & Koch G11
The G11 is available in the last pack of missions when Gabe hunts down Mara Aramov. It's incorrectly classed as a sniper rifle likely due to its custom scope view, but still handles like an assault rifle due to its blisteringly high rate of fire.
An unknown weapon named "K3G4" is available during certain missions. Though considered a 'rifle', it is held one-handed. It fires so-called 'Teflon' rounds that penetrate armoured enemies, permitting their deaths without headshots. Bizarrely, enemies drop their flak jackets upon death, so it is possible to kill them with this weapon AND still replenish one's armour.
The M16A2 is seen, replacing the A1 model seen in the previous games. The world model strangely appears without the stock or buffer tube modeled (which would in reality, not allow the weapon to work at all as there's no space for the bolt carrier to slide back into and allow a round to be loaded into the chamber).
Additionally, the weapon still fires in both bursts and full-auto, the latter of which the A2 variant is incapable of doing.
What appears to be the AK-102, judging from the name and locale it is used, appears in the game. Unlike its previous incarnation, the gun now appears with all wooden accessories.
SIG SG 550
A SIG SG 550 is depicted as the game's sniper rifle.
Composite 4 charges
C4 charges once again make an appearance.
Despite being, in real life, an explosive grenade, the M67 appears as an incendiary grenade.
M7 CS gas grenade
A grenade containing Soman nerve gas (a chemical similar to but more toxic than Sarin, also known as GD) can be found in stealth missions. It appears to essentially be a truncated M7 CS gas grenade. It is integral to taking enemies down without sounding the alarm.
Tru Flite 37mm Super Long Range Gas Gun
Incorrectly called the 'M-79' in-game (in reference to the M79 Grenade Launcher), the Tru Flite 37mm Super Long Range Gas Gun is, in reality, unable to launch high-explosive grenades. The model seems to be similar to that used in previous games.
An unidentified crossbow can be used during the Pugari missions and in Paradise Ridge. Firing knockout rounds, it generally renders targets unconscious unless the player aims for one's head. The weapon has a red dot sight and a maximum capacity of five rounds.
A general-purpose, non-descript taser is a starting weapon in every mission. The signature weapon of the series, it was possible to set enemies alight if sustained stunning was used. This convention carried over to most games in the franchise, but it was not possible to cause targets to be set aflame in certain circumstances. In the PS2 and Vita versions of Syphon Filter: Dark Mirror, you can't burn enemies with the Taser but in the PSP version, you can. In Syphon Filter: Logan's Shadow, you can't burn enemies with it. This is a version of the early Taser prop seen in movies such as The Perfect Weapon and TV shows such as The X-Files.
KA-BAR Combat Knife
The combat blade from Syphon Filter 2 returns.
Rhoemer's plantation is defended by numerous turrets which the player must destroy to advance.