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Metal Gear Solid: Portable Ops

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Metal Gear Solid: Portable Ops
Metal Gear Solid: Portable Ops (2006) and Portable Ops Plus (2007)
Release Date: MPO 2006, MPO+ 2007/2008
Developer: Kojima Productions
Publisher: Konami
Series: Metal Gear
Platforms: PSP
Genre: Action-adventure/Stealth

Metal Gear Solid: Portable Ops, is an action-adventure stealth video game developed by Kojima Productions and published by Konami in 2006 exclusively for the PlayStation Portable (PSP). Metal Gear Solid: Portable Ops Plus (officially abbreviated MPO+), the game's stand-alone expansion focused primarily on online play, was released for the PSP in 2007 in Japan and in 2008 in other regions.

MPO is the third Metal Gear title made specifically for the PSP (counting the two Ac!d turn-based games but not Metal Gear Solid: Digital Graphic Novel, since the latter was not a game) and the first one to retain the series' action-based play mechanics. It is set in the same continuity as the mainline Metal Gear series, though it is dubious as to what extent it is part of the main timeline as Hideo Kojima, who neither directed nor wrote it, was notably not fond of it and has stated some parts of it do not fit. Set in Colombia in 1970 on a fictional peninsula named San Hieronymo, six years after the events of Metal Gear Solid 3: Snake Eater, the game follows the exploits of Naked Snake after his former unit, FOX, goes renegade. The game also chronicles the eventual founding of FOXHOUND and The Patriots, as well as the inspiration of the military state Outer Heaven.

Metal Gear Solid: Portable Ops Plus is a non-canon MP focused spin-off, single player is now a rogue-lite-like mode called "Infinity Mission", where the player moves through the levels with randomized items and enemies, with enemies/weapons from future MGS games appearing.

The "on-site procurement" method of obtaining items from past Metal Gear games is mostly present, enemy guards that the player character captures will still have their weapon on them, allowing the player character to procure weapons from enemies instead of just from pre-placed one-off pickups. In addition, in Plus, it is now possible for enemies to randomly be carrying a duplicate of their weapon and drop it, giving the player character their weapon (in addition to rare randomized weapon pick-ups) amusingly, this is not capped; in an extremely rare situation, this can result in the player holding up a guard, making them drop their all 4 items, which will be 4 copies of their RPG-7, then capturing them and obtaining their 5th RPG-7 in their hands.

For the first time, player characters are able to move while aiming/firing in first person mode and like MGS3, weapons have suppressors that will wear out over time, but unlike MGS3 the player character cannot freely detach/re-attach suppressors. Instead every weapon has a suppressor mounted when entering a stage and the only way to get a new suppressor is to leave and re-enter the stage. In Plus, a new suppressor will only be added to a firearm once the player reaches a checkpoint (where the player can make a temporary save, access gear stored in the truck as well as any captured soldiers).

The following weapons appear in the video game Metal Gear Solid: Portable Ops:


Mk 22 Mod 0 "Hush Puppy"

A tranquilizer gun based on the Smith & Wesson Model 39 pistol using 9mm tranquilizer ammunition. It's fitted with a suppressor. This is the first weapon the player acquires in the game. The ideal gun for tranquilizing enemies for recruitment or neutralization. Can be procured at the Ravine after receiving a spy report in the European version. Para-Medic and Elisa also comes with this weapon when recruited in an optional mission and/or meeting special conditions and/or via passcode.

In Plus it's possible for Nurses to rarely be found with one in their inventory when recruited during Infinity Mission.

Mk 22 Mod 0 "Hush Puppy" with suppressor attached - 9x19mm
Aiming the Mk 22
Reloading the Mk22 in First person.
Snake holds an Enemy Soldier in a grab with the Mk22.
Mk 22 Mod 0 "Hush Puppy" in the game's title screen
Mk 22 Mod 0 "Hush Puppy" hud icon

Colt M1911A1

The M1911A1 is .45 ACP semi-automatic pistol, it holds seven rounds. This weapon is incorrectly used by female Soviet officers, certain male Soviet soldiers and officers instead of a more correct Makarov PM, and to a lesser extent FOX soldiers. Can be procured at the Communications base via a Spy Report. Roy Campbell also has the gun on him during the storyline, as Jonathan attempts to steal his gun so he could use it against Snake before being floored via the latter's CQC skills. Cunningham also uses the gun on Snake's men as part of his interrogation of Snake regarding the location of the Philosophers' Legacy. One of the FOX soldiers also used this weapon in a failed attempt at trying to prevent Snake's escape after Elisa defected to Snake's side. Snake later used the gun on Gene in an attempt to hold him up after Colonel Skowronski inadvertently provided Snake with a distraction, as well as to shoot out the lock of Skowronski's cage (which had been frozen shut by Python earlier) to allow him a chance at escape.

The in-game M1911A1 model is the one Snake starts with in MGS3 during Operation Snake Eater but loses to the boss before being able to use it on anyone, the suppressor from MGS3 is not available to the 1911 in Portable Ops and the customized version isn't included in-game at all.

Colt M1911A1 - .45 ACP
Aiming the Colt M1911A1 as a Tengu, some of the new character models in Portable Ops Plus block parts of the guns/sights due to their blocky models from MGS2.
Snake aiming the Colt M1911A1.
Reloading the Colt M1911A1.
An enemy soldier holds his shield and 1911, with his 1911 clipping into the shield due to the animations originally being for a Makarov.
Colt M1911A1 hud icon

Colt Single Action Army

The Colt Single Action Army appears once again as Ocelot's weapon of choice; the ricochet ability from previous games is maintained. He also uses it in the main story to take out the CIA director and his bodyguards nearing the ending, and presumably also left it behind to frame his death as a suicide.

In-game, it's ability to Ricochet Bullets is restricted to Soldiers with an A Handguns rank and it is inaccurately portrayed as double-action, this is likely due to tech limiations (As characters models do not have animated thumbs in Portable Ops) as when firing when aiming, the gun still moves around like when Snake cocks the hammer back after firing like MGS3 just without the actual thumb cocking the hammer back, you can also move while firing the SAA unlike MGS3.

Single Action Army w/ 5.5" barrel aka "Artillery" model with wooden grips.
Ocelot aiming his SAA at a Soviet soldier
Fanning the hammer of the SAA at in first person.
Aiming the SAA, while the thumb isn't animated, this is supposed to be like MGS3 where Snake used his thumb to cock the hammer back after every shot for a slower fire rate, in PO instead the gun just shakes around a bit during the part of the animation where Snake's thumb would be cocking the hammer back.
Ejecting spent bullets from the SAA, this is the only part of the reload visible in first person.
The Colt SAA in third person as Venus (From MGA2 who is unlockable as an NG+ Chracter) hugs a wall.
Single Action Army hud icon

Heckler & Koch Mark 23 Phase II Prototype

The H&K Mark 23 appear as a Portable Ops Plus exclusive. A semi-automatic handgun fitted with a suppressor and laser sight. Can be obtained by recruiting Raiden or by completing the hidden mission during the Extreme difficulty.

While it's impossible to normally find "unique" weapons like the Mark 23 or Old Snake's M4A1 SOPMOD during single player gameplay, if a unique character is "Killed", they'll instead be captured and can be rescued from in-game jail cells, they will have an extra copy of their weapon on them.

Airsoft Heckler & Koch Mk 23 Phase II Prototype (note front cocking serrations, deleted from production models) with Tokyo Marui replica of a Knight's Armament suppressor and prototype Laser Aiming Module - (fake) .45 ACP
Roy Campbell aiming an Mk 23
The Mk 23 hud icon

Submachine Guns


The MAC-10 is a 45. ACP caliber SMG with a high-rate of fire and is called the "M10" in-game. Used by Null in combination with his Machete in game. Equipped with a suppressor. Can be obtained at the Power Substation via a Spy Unit Report, the model is re-used from the Ingram M11 from Metal Gear: Ac!d 2.

Ingram MAC-10 - .45 ACP

Snake holds the "M10"

The "M10" in first person

Reloading the "M10" in first person

Reloading the "M10" without a suppressor.

Null aiming his Ingram MAC-10

Ingram MAC-10 hud icon


The Uzi is a 9x19mm SMG with a high-rate of fire. It can be unlocked by recruiting Teliko from Metal Gear Ac!d under special conditions. Can also be procured at the Production Plant if a Spy Unit is sent there and sends a report, it and the MAC-10 are rare to obtain as enemy forces never use them. In the European version of Portable Ops and in Plus the Uzi is instead called the "U-SMG".

IMI Uzi -9x19mm
IMI Uzi in FPS mode
The IMI Uzi in third person.
IMI Uzi hud icon

Sa. Vz.61 Skorpion

A 32.ACP caliber SMG; it is equipped with a laser-aiming module for targeting. Can be procured at the Supply Depot via a Spy report. The Skorpion is also used by FOX soldiers, it still holds an innaccurate 30 bullets per magazine. One of the FOX soldiers during Snake's escape from the guest house may have been using this weapon in their failed attempt at preventing his escape, since it was not visible yet had a repeat fire.

Sa. Vz.61 Skorpion - .32 ACP
Sa. Vz.61 Skorpion held by soldier in-game
Reloading the Sa. Vz.61 Skorpion in first-person.
Sa. Vz.61 Skorpion hud icon

FN P90

The FN P90 appear as Portable Ops Plus exclusive. A SMG using 5.7x28 mm rounds, Bullpup style gun. Holds 50 rounds per magazine. Can be obtained from Tengu soldiers.

Fabrique Nationale P90 - 5.7x28mm
P90 in FPS mode
P90s held by Genome Soldiers
P90 hud icon


Ithaca 37

An ambidextrous 12-gauge shotgun; holds four rounds.The Ithaca 37 can be procured at the Rail Bridge if a Spy Unit stationed there finds and reports it's location. In addition, the character Major Ivan Raidenovitch Raikov comes equipped with this shotgun when he is recruited.

Ithaca 37 with sawed-off stock and barrel - 12 gauge
Ithaca 37 hud icon.

Remington 870

A 12-gauge shotgun; a step up from the Ithaca 37 by holding seven rounds. Can be procured at the Airport after receiving a spy report from a spy unit stationed there. Major Zero also comes equipped with the Remington 870 when recruited.

Remington 870 - 12 gauge
Para-Medic firing the M870 in-game.
A recruited FOX Soldier holds his M870.
Firing the M870 in first person, the pump isn't animated.
Reloading the M870 with a shotgun tube speedloader.
M870 hud icon.

Assault Rifles


American made 5.56x45mm assault rifle, commonly used by the military. Holds 20 rounds per magazine. Can be procured at the Soviet Patrol Base via the Spy Unit. The character Python also carries the weapon during his boss fight, although not when he's a playable character. In Portable Ops Plus, Roy Campbell when unlocked comes equipped with this gun.

Early screenshots show it had the camouflage tape and paint from MGS3 but in the final-game it has the uncamouflaged texture from the E3 version of Snake Eater.

M16A1 with 20 round magazine - 5.56x45mm.
The M16's third person model.
The M16 in FPS mode.
Reloading the M16 in FPS mode.
The M16 hud icon.
Non-canon unlockable bonus character Major Zero holds uses the M16A1 from MGS3 in an early screenshot, note the FOX troopers using the AKS-74U which would be cut and only included in Plus.

M16A1 with M203 grenade launcher

Although not actually used by the player, an M16A1 with an underbarrel M203 grenade launcher is used by Python during his boss fight. Unsurprisingly, it fires liquid nitrogen grenades, instantly freezing any weapons the player has on them and damaging the player's Stamina.

M16A2 (5.56x45mm) with M203 40mm grenade launcher
Python with his M16A1 with an M203 attached

Colt XM177/CAR-15/Commando Series

A carbine version of the M16; the barrel and butt of the rifle both have been shortened, fitted with a suppressorand has 30 round magazines. Appear as "XM177E2". The XM177 is one of the many weapons used by FOX soldiers and exclusive only to them, the suppressor lasts for 30 bullets then breaks.

XM177E2 Carbine aka Colt Model 629 - 5.56x45mm.
XM177E2 in-game.
XM177E2 first person view.
Reloading the XM177E2 in first person.
XM177E2 Iron Sights.
XM177E2 with the suppressor gone.
Third person view of the XM177E2 with the suppressor gone.
XM177E2 Carbine hud icon.


Portable Ops Plus exclusive. American made modern carbine rifle using 5.56x45mm rounds. 30 rounds per magazine. Can be obtained from a Navy SEAL or High-Tech soldier. The game lists this weapon as an M4, but its fully automatic fire makes it an M4A1, not an M4, which is limited to semiautomatic and burst-fire only.

Gun Cameras with an M4A1 equipped appear in the original PO and PO+, these are anachronistic in the original Portable Ops.

Colt M4A1 Carbine with 4 position collapsible stock - 5.56x45mm NATO
M4A1 in FPS mode
A Gun-Camera with an M4A1 mounted, this same model was previously used in the Ac!d sub-series but the PO version has less detail.
M4A1 hud icon


Portable Ops Plus exclusive. Uses 5.56x45mm. Fitted with a foregrip. Can be obtained after recruiting Old Snake.

M4A1 Carbine - 5.56x45mm NATO
Old Snake with his M4A1 SOPMOD in-game.
M4A1 SOPMOD in first person view.
M4A1 SOPMOD Ironsights.
M4A1 SOPMOD reload.
M4A1 hud icon.


The AK-47 is a Soviet-made 7.62x39mm assault rifle, standard issue for the Soviet soldiers, developed in 1947. Used by all Soviet male soldiers. Holds 30 rounds per magazine. One of the FOX soldiers used an AK-47 in a failed attempt to stop Snake's escape via a defecting Elisa. The Soviet soldiers at the plant also attempted to use the weapon on a freshly-escaped Null, although the latter's superhuman speed had him both evading the guns' rapid fire capabilities and effortlessly kill the Soviet soldiers, all while Snake watched. Several AK-47s were also used in the ending by Snake's men, when aiding Snake in taking out the ICBMG to repay him for his help in preventing the weapon's launch into the USSR.

AK-47 Milled Receiver - 7.62x39mm
AK-47 in FPS mode
AK-47 hud icon


The AKS-74U is a Portable Ops Plus exclusive. Uses 5.45x39mm rounds. In-game is described as derived from the AK-47, while in real life derived from the AK-74. Can be obtained from Gurlukovich soldiers. Early screenshots show that at some point it was considered for the original game, it was likely originally not included due to the game taking place in 1970 while the AKS-74U was introduced in 1979. (And Portable Ops Plus is blatantly non-canon since characters like Raiden and Old Snake show up with modern firearms.) Despite the Icon depicting it with a suppressor, in-game it is only available without one.

AKS-74U (also referred to as the "AKSU" or 'Krinkov') - 5.45x39mm
AKS-74U held by a Gurlukovich soldier (center)
AKS-74U hud icon
An early screenshot showing Para-Medic in her MGS3 outfit kicking a soldier armed with the AKS-74U, in the final game Paramedic has a new outfit for Portable Ops and guards use the AK-47 from MGS3.


The FAMAS is another Portable Ops Plus exclusive. Uses 5.56x45mm rounds. Bullpup style weapon. Used by Genome soldier during Shadow Moses. Can be obtained from Genome Soldiers. The FAMAS model seems to be the model cut from MGS2.

Airsoft FAMAS SV (Tokyo Marui AEG version of the G1) - (fake) 5.56x45mm NATO
Genome Soldier with a FAMAS
FAMAShud icon

Sniper Rifles

Mosin Nagant M91/30

The Mosin Nagant is a Soviet bolt-action rifle deployed in large numbers in the Second World War, however is modified to fires modified 7.62x54mmR tranquillizer darts in-game holding 5 rounds per magazine. Veterans of Metal Gear Solid 3: Snake Eater may recognize this weapon used by The End. The player must use this weapon at an appropriate range and be more careful with their aim as this weapon is not silenced like the MK22 and has a lower firing rate between shots. The scope has thick crosshairs making it suitable for use at night. Can be procured at the Nuclear Warhead Storage Facility via a Spy Unit Report.

Mosin Nagant M91/30 - 7.62x54mm R w/ scope
Mosin Nagant M91/30 in-game
Shooting a knocked out enemy to keep them down for longer, the bolt doesn't move in any animations.
The scoped view of the Mosin Nagant.
Mosin Nagant M91/30 hud icon

SVD Dragunov

A semi-automatic Soviet sniper rifle holding 10 7.62x54mmR rounds per magazine. It can be procured in the Western Wilderness via a Spy Unit Report. EVA also comes equipped with the SVD when recruited either via a special mission or via passcode.

SVD Dragunov - 7.62x54mmR
SVD in-game.
Looking through the SVD's scope.
SVD held by a FOX Soldier.
SVD hud icon.

Machine Guns

Stoner 63

A light machine gun variant of the M63 weapons system; fires 5.56x45mm ammo. Has 100 rounds per box magazine. Cannot be viewed from its iron sights. Although lacks accuracy this weapon is effective against machines and large numbers of enemies. It can be procured at the Harbor if a Spy Unit stationed at the area finds and reports it.

Stoner 63 - 5.56x45mm
Stoner 63 firing in FPS mode
Reloading the M63.
Putting a new belt in the M63.
Stoner 63 hud icon



Soviet-made rocket propelled grenade launcher using 85mm HEAT ammunition ideal for anti-tank and anti-air use. Mobility is lost when deployed. Triggers alert mode upon impact. The player can view down the attached scope instead of locking-on or view from first-person as a shoulder-fire weapon. Snake used the RPG-7 to take out the ICBMG before it could launch. Although the first salvo failed, the second one was ultimately successful in destroying the ICBMG upon launch.

RPG-7 - 40mm
RPG-7 in FPS mode
RPG-7 hud icon

RGD-5 Grenade

The most common hand grenades in the game are Russian RGD-5 hand grenades. They are used by both FOX and Soviet soldiers, and can also be obtained by Big Boss and other recruitable characters in various areas in the game. Using a grenade will trigger an alert. The ending where the Soviet soldiers and Big Boss take out the ICBMG has one of them throwing a grenade at the weapon (implied by the soldier making an overhand throw motion).

RGD-5 High-Explosive Fragmentation hand grenade.
RGD-5 menu icon.
Holding an RGD-5.

Fictional Soviet grenades

Like in Snake Eater, a fictional grenade design with a slender cylindrical body and an RGD-5 style UZRGM fuze assembly is used for four types of in-game grenade: Chaff, Stun, Smoke, and Liquid Nitrogen.

Chaff grenades are a fictional miniature broad-spectrum electronic warfare device which combine the effects of a radar jammer and EMP-like effects on certain technology. Chaff consists of small aluminum strips that are specifically designed to confuse radar frequencies, and normally used by aircraft to fool radar-guided missiles. The individual strips are cut in such a way that they wreak havoc with a radar's transmitted frequencies. The Chaff Grenade's main effects are to prevent in-game enemies from being able to call for help via radio, disable any security cameras in the vicinity, and to fool the guidance systems of guided missiles fired at Big Boss. This weapon is available in multiplayer.

Stun grenade menu icon

The stun grenade is a "flashbang" type that uses magnesium-based powder to produce a massive flash and sound burst: in real life this causes extreme disorientation and temporary blindness, while the game increases this to outright knocking enemies unconscious. Like in Snake Eater, these are anachronistic: the first flashbang grenades were developed by Royal Ordnance Enfield in Britain for use by the SAS' counter-terrorist unit, and the first known use of the result, the G60 stun grenade, was in 1977 when the SAS assisted the German GSG-9 special forces unit in retaking a hijacked airliner at Mogadishu airport. They are available in multiplayer.

Smoke grenade menu icon

Smoke grenades can be used to deter enemy pursuit and also to drive off attack dogs in later difficulties. They are available in multiplayer.

Liquid Nitrogen grenade menu icon.

The LN G (short for "Liquid Nitrogen Grenade") is a grenade that releases liquid nitrogen to provide quick visual cover and quick distraction of enemies and freezes all the player's deployed equipment and weapons when in proximity of the explosion. The weapon is exclusive to Python, and the only one of his arsenal to actually be included in his inventory after recruiting him.

MON-50 anti-personnel mine

Despite being called Claymores in-game and explicitly mentioned to be American-made in the item description, the weapon bears a stronger resemblance to the MON-50 anti-personnel mine, this same error and model appeared previously in MGS3.

MON-50 anti-personnel mine
MON-50 in-game.
"Claymore" hud icon

Spetznatz Knife

A Spetznatc Ballistic Knife can be created by your tech team in Portable Ops and found in stages in Plus, when unaimed, the Knife will be slashed and thrusted like the aimed Survival Knife but when aimed, the blade can be launched as a weak projectile.

A soldier holds the "Spetznatz" Knife.

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