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Mariposa Military Base

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Mariposa Military Base
Fo1 Military Base Townmap
Icon military
Site
map markerMilitary Base
part ofCore Region
People
factionsU.S. Army (pre-War)
The Unity (2102-2162)
Enclave (2236-2237)
Second generation super mutants (2241)
leadersColonel Robert Spindel (pre-War)
Lieutenant (2161)
Colonel Sanders (2236-2237)
Melchior (2241)
Other
questsDestroy the source of the Mutants
Scout the northern wastes
Convince the Elders to send help to Mariposa
Technical
terminal entriesVats control computer fo1Gametitle-FO1
map nameFallout:
MBENT.MAP (surface)
MBSTRG12.MAP (level 1 and 2)
MBVATS12.MAP (level 3 and vats)
Fallout 2:
mbclose.map (surface)
MBASE12.MAP (level 1 and 2)
MBASE34.MAP (level 3 and 4)
 
Gametitle-FO1Gametitle-FO2Gametitle-FO3Gametitle-FNVGametitle-FNV DMGametitle-FB
Gametitle-FO1Gametitle-FO2Gametitle-FO3Gametitle-FNVGametitle-FNV DMGametitle-FB
"Vats of Goo"

[...] based on the fact that these mutants have a super high concentration of the virus, it stands to reason that there could be some place which is creating them. As to where they could be, I cannot hazard a guess.

Vree's autopsy report

My job was still not finished, for I still had one task remaining. The Master had literally built his army one mutant at a time. Humans, preferably with little radiation damage, were to be captured and sent to the Vats.

Vault Dweller's memoirs

The Mariposa Military Base was a top-secret United States military facility built to house Forced Evolutionary Virus research previously conducted at West Tek, located somewhere in the area of the Mariposa unincorporated community in California.

Fallout locationEdit

Mariposa Military Base can be found thirteen squares west of Vault 13.

Fallout 2 locationEdit

Mariposa Military Base can be found ten squares east and twenty-seven squares south of Arroyo.

BackgroundEdit

Pre-War historyEdit

The construction of Mariposa started in October 2076 when significant progress was made in FEV research, and the government preferred to move the project to a location under military supervision. In 2077, Major Barnett ordered transfer of all FEV research to the newly-constructed Mariposa Base, despite objections from the research team. Along with the scientists, a military team commanded by Colonel Robert Spindel, which previously monitored the experiments at West Tek, was sent to Mariposa. Spindel's second-in-command was Captain Roger Maxson. The FEV project was moved to Mariposa, and tested on human subjects. The vats were giant tanks filled with liquid FEV. As part of the research project, human subjects were dipped inside them, and then examined to learn how to control and harness the process. The experiments on humans were kept secret even from Spindel and his soldiers.

Wartime eventsEdit

On October 10, Maxson and his men were horrified to discover that the scientists at Mariposa were using military prisoners as test subjects in their experiments with the Forced Evolutionary Virus. Morale in the base broke down, and Spindel suffered a mental breakdown, eventually committing suicide 5 days later. Maxson's men turned to him for leadership.

After interrogating Robert Anderson, the chief scientist, and learning about the extent of their actions, Maxson executed him, and the other scientists soon followed. Maxson, now in control of the entire base, declared himself to be in full desertion from the army via radio on October 20. Strangely, he got no response, as the rest of the army was busy fighting the Chinese threat. Three days later, the bombs were launched, and the Great War ended two hours after it started.

The Mariposa Military Base survived, the soldiers within protected from the radiation and FEV flooding the wasteland. Two days later at Mariposa, a scout in power armor named Platner was sent out to get specific readings on the atmosphere. He reported no significant radiation in the area surrounding the facility. After burying the scientists in the wastes outside of Mariposa, the soldiers sealed the military base, then headed out into the desert, taking supplies and weapon schematics with them. Captain Maxson led his men and families to the government bunker at Lost Hills, eventually forming the Brotherhood of Steel.

The base was left sealed, but over the years, it slowly fell into disrepair, and eventually various creatures made their way inside, mutating due to FEV exposure and infesting the surrounding area, attacking fledgling human settlements and caravans. The problem was becoming increasingly severe, to the point when Harold, a caravan master from the Hub, mounted an expedition in 2102 to locate and destroy the source of mutants.

Master's ArmyEdit

Vats

FEV vats at Mariposa

Dr. Richard Grey was one of the explorers who was part of the expedition. Harold led the men into Mariposa, but failed to account for the automated defenses, which were still online, and promptly attacked the explorers. Taking heavy casualties, they made their way to the deepest, fourth level, the F.E.V Vats, where a crane smashed into the two surviving explorers, Harold and Richard Grey. The former was knocked out, the latter landed in one of the virus vats, succumbing to a severe overdose.

In pain, horribly mutated, he crawled into the control room, as his intellect grew. In a few days, he was neurolinked to the base computer, drawing upon its sizable data banks. As he created the idea of the Unity, wanderers began to enter the facility, and Grey patiently captured and dipped them, in order to create beings as perfect as him. When the first true super mutants were created, he set out to create a true mutant army, at the same time deciding to look for a permanent base of operations. In 2155, one of his patrols located a group of vault dwellers from the LA Vault, and he made the decision to transfer himself there, occupying the Vault.

The base was entrusted to the Lieutenant, one of the greatest super mutant minds to exist. Mariposa was rebuilt and cleaned up, once again becoming the magnificent military base it was before the war. Super mutants roamed the halls, restocking the armories and medical base and soon it became the staging area for their assault on humanity, as well as the only super mutant production center.

Then came the Vault Dweller in 2162. It is unknown whether or not he infiltrated the base or blasted his way in - suffice to say, once he was through, Mariposa was little more than a caved-in, smoldering ruin.

Enclave's excavationsEdit

In 2236, the Enclave discovered the remnants of the Mariposa Base. Soon, assault squads combed the desert for slaves they could use to mine the military base and get to the vats. One of the squads included soldier Frank Horrigan. Enclave construction crews, as well as human slaves began excavations. In September they uncovered FEV, and mutations began to occur in the human workers. Frank Horrigan came into contact with the virus and was sent to the Enclave labs for study.

In 2237, having obtained the FEV data, the Enclave abandoned the site after more mutations occurred, causing 2nd Generation super mutants to arise. The Enclave left a single squad behind to wipe out the super mutants, but the mutants, using armaments they had cached in the base during excavation, reduced the squad to ashes after suffering heavy casualties.

By 2241, the remains of the ruined base are inhabited by those trapped human miners who have been hideously altered by the remnants of the F.E.V. virus that still contaminates the wreckage. That group formed a new community under the leadership of Melchior, whose magical talents had allowed them to hide the weapons.

StructureEdit

Surface (Fallout 1)Edit

Square footage: 30000 ft
Fo1 Mariposa Surface

Before destruction...

FO1 Mariposa ruins

...and after

The Mariposa was a reinforced military base, constructed in the middle of nowhere, in the side of a mountain. The exterior had a characteristic white lining and massive air conditioning vent providing fresh air for the complex. Inside, it consisted of four levels, stretching across a mile of depth.

Surface (Fallout 2)Edit

Fo2 Mariposa Entrance

The layout of the base is pretty much similar to that in Fallout, although there are some tents (in one of them the Military base outside holodisk) outside the base, wolf packs, and the entrance to the base is blocked by rubble. To get in the base you will need to find the metal pole and put it on the rail cart ("Use on"). Next, you need to put some dynamite (can be found in the little shack right from the entrance to the base) on the rail cart (you need to right click and hold on the cart, and then choose the "bag" option; after that, simply click on the dynamite from the menu) and push it down. Doing this will net you 5000 XP.

Stronghold Level 1 (Fallout)Edit

Fo1 Mariposa Stronghold 1
Square footage: 40000 ft

The first level of Mariposa housed the gear needed for any excursions, as well as a staging area for patrols. Oddly, the main control computers for the base's force fields and robotic guardians were located here, allowing any infiltrator to considerably sabotage the base, just by altering the Pest Control setting for the robobrains, in addition to altering the force field status remotely. Apart from that, guard barracks were located on this level, for off-duty surface security teams.

Stronghold Level 1 (Fallout 2)Edit

Fo2 Mariposa Level 1

When the player arrives to the first level of the base, first thing he/she would notice are the Enclave soldiers and mutant bodies lying around. It is recommended that the player loots these, especially Enclave, since some of them have holodisks, and one has a plasma pistol. The level is mostly filled with mutated rats (which can poison you if they bite), which can be easily dispatched. However, in one of the halls, there is a super mutant, Grundel, which will attack you, if you try to talk to him. He is wearing spiked knuckles. Note that in the south-west corner (in the hall leading to the elevator) there is a broken power generator, which can be repaired for 1500 XP (this can be easily done if you have Vic in your party). Doing this will also turn on the lights in the base.

Stronghold Level 2 (Fallout)Edit

Fo1 Mariposa Stronghold 2
Square footage: 60000 ft

The primary soldier living quarters, medbay and armory were located on this level. The quarters were spacious, although spartan in design, with a large stockpile of weapons just around the corner and a well equipped sickbay, stocked chock full of medical chems, surgical equipment and medical beds with integrated life support systems.

Stronghold Level 2 (Fallout 2)Edit

Fo2 Mariposa Level 2

The second level of the base is filled with super mutants, about 15 of them, but for an experienced player, they shouldn't pose a large threat. Mutants are usually wielding power fists and flamers, although few of them use laser rifles and plasma rifles. In most of the lockers you can find money, stimpaks, some ammunition and most notably, in the east corner of the map, a T-51b power armor.

Stronghold Level 3 (Fallout)Edit

Fo1 Mariposa Vats 1
Square footage: 80000 ft

The third level was divided in two, one was the general access area, where the assembly room and elevator to the commander's office were located, the second a military prison with an elevator going directly to the Vats. When Mariposa was operating under government jurisdiction, experimenting with FEV, only scientists and their security staff were allowed into the prison area and the Vats - soldiers under Colonel Spindel and Roger Maxson were barred from entry.

Stronghold Level 3 (Fallout 2)Edit

Fo2 Mariposa Level 3

Like on the second level of the base, third level is also inhabited by super mutants which use laser rifles, plasma rifles and flamers. Also, there are some Mutated Beasts (Pig rats) which are weak, but you can get poisoned if they bite you. Note that there are Super Duper Mutants on this level, which have greater HP than "normal" Mutants. As comes to the loot, you should pay attention to the first room after you exit the elevator. In the room is the locker, in which you can find Green memory module, which can be used to expand ACE's medical library, thus allowing you to increase your Perception by 1. Finally, in the south-eastern corner of the map, there is an elevator, which takes you to the final level of the base, the Vats.

Vats (Fallout)Edit

Fo1 Mariposa Vats 2
Square footage: 60000 ft

Divided in two as well, the deepest level housed the massive FEV Vats, together with their control room, scientist living quarters as well as the base commander's office. As with the third level, access to the FEV research area was strictly limited, with only scientists being allowed to enter. A special containment squad, the super mutant Vat Team 9, was stationed in the room near the cell block access elevator, to deal with any potential disturbances. It was composed of three soldiers.

The Vats control room was where the base's mainframe was also located, holding personnel logs (Boyarsky, Roger Maxson, Richard Grey etc.) as well as the self-destruction initiation subsystem. Encrypted behind a firewall, these were nonetheless accessible for a skilled hacker. Alternatively, just blowing the console up would trigger the self-destruct sequence, but the base would be set to alert status, powering up the force fields.

Transcript

Mariposa Encryption Codes
17652-1028-1285362 - 1 minute silent self destruct sequence
67209-5574-7805564 - 30 second self destruct, set base to alert
55658-8678-1251533 - set base to alert status
31914-1041-1251514 - 300 second silent self destruct sequence
53478-2565-7763929 - 300 second self destruct sequence, set base to alert

Vats (Fallout 2)Edit

Fo2 Mariposa Level 4

The deepest level of the base houses one of the tougher enemies in Fallout 2, Melchior. He is standing in the north-western corner of the map, surrounded by goo which has remained there since the Vault Dweller destroyed the FEV vats. Melchior himself is not that tough, but his abilities are unique. From the vats (or more precisely, the goo), he can and will summon deathclaws, fire geckos, floaters and mutated mole rats. They are summoned in that descending order, and if you are strong enough to survive several waves of them, you are rewarded with some funny lines. He can have 4 summoned allies at a time, which can be bothersome, so it is best to dispatch him first, and then his "pets". This is quite challenging, even for experienced player with a good party, so you should be very cautious, and prepared to leave the scene of battle with 1-2 companions less. Melchior also guards a locker containing a PPK12 Gauss pistol.

NotesEdit

  • The background music is Vats of Goo, which was originally used for the intro in Fallout. The music is same in both Fallout and Fallout 2 and is used for Broken Hills as well.
  • In 2241, there are some super mutants named as super duper mutants. One of them can talk about their recipe: rat surprise.
    • The recipe is told as when the rat is caught, it is needed its tail to be left on a wall until it falls down. Once done, it is needed to be eaten quickly, else "the surprise would crawl out and fly away".

AppearancesEdit

The Mariposa Military Base appears in Fallout and Fallout 2. It is mentioned in Fallout 3 by Harold in Oasis. The base is also mentioned in a terminal located in Vault 87. It is also mentioned in the personal journals of Maxson I, which are stored in the Citadel archives. It is mentioned on a Fallout: New Vegas loading screen saying that the super mutants in the Mojave are the remnants of Mariposa, and in its add-on Dead Money by Dog in idle dialog.

Behind the scenesEdit

  • According to Chris Taylor, Mariposa Military Base is based on Fort Ord, an old military base that has been shut down near Monterey Bay. It was called Base Omega in early design documents.
  • The name of the base, Mariposa, in Spanish means butterfly. This connects to the metamorphosis that occurs in a caterpillar turning it into a "better" creature, in this case a butterfly. When pure humans are dipped into the FEV vats they transform into a "better" creature, in this case, a smarter / faster / stronger super mutant. It may also be because the Fort Ord site was, in 1994, turned into a nature reserve for the endangered Smith's blue butterfly.

BugsEdit

  • In a few cases the yellow force fields' device cannot be deactivated by the use of a tool. If that happens it's only necessary to simply use the Repair skill directly into the force field device. [verified]
  • In Fallout, in Mariposa level 2, there are some super mutants locked in a room. Loading a previous save will make them all dead, or make them disappear entirely. [verified]

Related holodisksEdit

FalloutEdit

Fallout 2Edit

Mariposa Military Base

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