Enclave Department of the Army

''They were still fighting the WAR? Really!''

Main article: Enclave

Overview


The United States Armed Forces circa 2241, in fact.

The Enclave army was composed of hundreds of soldiers armed with advanced versions of Power Armor and guns, that rival the Brotherhood of Steel. According to dr. Charles Curling there were thousand inhabitants on the oil rig. It seems:
 * the Enclave army consisted of 200-900 soldiers, which was 20-90% of whole Enclave population ,
 * a company was probably the highest grade unit organization and the only known example was Enclave Control Company.

Ranks
See: Ranks in the Enclave Armed Forces

The President
According to United States Constitution the President shall be Commander in Chief of the Army and Navy of the United States.


 * Presidential Directives could concern armed forces conditioning and testing programs.
 * Presidencial decisions could concern major importance scientific projects connected with military actions.
 * Presidential Orders could concern military research and data protection.

The President was in charge with the Emergency Defensive Systems on the oil rig (see: the oil rig immobile units).

Main command and Central Headquarters
On the one hand it could be the same thing, on the other hand CHQ could be main command together with its supportive units.
 * Main command – name used on PoseidoNet by the Enclave troop,
 * CHQ – col. Sanders’es holodisc addresse.

Known features:
 * Main command superior powers concerning United States Chemical Corps were not certain in light of fact, that dr. Curling reported about the Project directly to the Cabinet.
 * Main command was entiteled to iniciate verti-assault unit or internal security action.
 * Secret Service operations on the mainland were secret to at least some main command staff.
 * Main command staff used the Enclave Vault-Research Control station connected to PoseidoNet.
 * Col. Sanders was reporting to CHQ, while he was overseeing the Mariposa Military Base excavations.

US Armed Forces executive branch
Counterpart for prewar US Army and US Marine Corps.

Mobile units
Enclave Control Company and verti-assault unit.

Enclave Control Company
The Enclave Control Company (the EC Company) was the only unit responsible for perimeter defense.
 * Part of this company was sgt. Granite's squad of 4 experienced troops . Just before the oil rig destruction that squad was used as ad hoc support there . The squad was equipped with Advanced Power Armors and armed with:
 * Pulse Rifle,
 * Turbo Plasma Rifle,
 * Gatling Laser
 * Plasma Grenades


 * Very likely the EC Company was responsible for Camp Navarro perimeter defense. In that case it could consist of Enclave Patrolmen. Encountered on Navarro perimeter the Enclave Patrolmen during Enclave Patrol encounter claimed places of encouners as the Enclave territory and called the PC an illegal alien. The Enclave Patrols on Navarro perimeter were light teams of 4 Enclave Patrolmen . More rare, but possible were 8 troop squads - 2 teams in fact. They were reporting to some base, but they were absent at Camp Navarro. Such patrols were equipped with Advanced Power Armors and armed with advanced one hand weapons, like:
 * Pulse Pistol,
 * Plasma Pistol,
 * Gauss Pistol,
 * H&K G11.


 * Some Enclave troops called the Enclave Patrols took part in Mariposa Military Base excavations. According to remnants found there, they were equipped with Advanced Power Armors and armed with:
 * Cattle Prods,
 * energy pistols,
 * Plasma Grenades
 * probably Plasma Rifles and Laser Rifles also.


 * If not beeing a part of ECC, the Enclave Patrols could be members of another unit, because of their Cap. Pickard's rank - a company-size one very likely.


 * Melchior, a miner form Redding, was kidnapped by the Enclave patrol to work in Mariposa Military Base excavations, while slave workers there were caught by (verti)assault squads [[Image:Fob header.gif|60px]].

Verti-assault unit


Highly mobile long range assault unit. Because of security purposes the Enclave main command was able to send verti-assault team or assault squad even to as distant place as Gecko. It was stationed on the oil rig.

Verti-assault unit was equipped with:
 * miniguns with cartridge cases - Rockwell: CZ53 Personal Minigun or Avenger Minigun ,
 * plasma weapons.

Known verti-assault operations were connected with the Project. It was: Some assault squads had caught slave workers for Mariposa Miliary Base excavations also.
 * seizing of Vault 13 - at least 2 verti-assault squads present according to  Fallout Bible and at least 1 vertibird and 6 troops with 3 miniguns present according to Fallout 2 intro,
 * destruction of Arroyo - at least 2 vertibirds present according to Hakunin.

Verti-assault unit size:
 * at least 2 squads ,
 * verti-assault unit used at least one or two aircrafts, so one squad - one vertibird rule was possible.

The oil rig immobile units
The oil rig guard unit, external defenses and Emergency Defensive Systems.

The oil rig guard unit
All 79 troopers encountered on the oil rig were described as Enclave troopers. All of them were equipped with Power Armors or Advanced Power Armors. Troopers on the oil rig refered at floating texts some teams - Bravo and Gamma.


 * There was Guard Barracks level on the oil rig where 22 troopers were present, including less experienced squad of troopers, equipped with Power Armors and Gauss weapons only, present at the Guard Barracks bedroom.
 * Guard unit provided security for Test Subject Holding Level probably and 8 troopers were present there.
 * Troopers present on presidencial area carried guarding duties also.

During execution committed on “farmers” family at the beginning of September 2241 Secret Service agent Horrigan was accompanied by two the Enclave guards.

External defenses
Guns connected with naval IFF system - an anti-naval defense and probably air defense. Known naval capable guns were:
 * 5 mm JHP dual miniguns at Sierra Army Depot and .223 dual heavy miniguns inside the oil rig, eg. possible to used for close airdefense,
 * plasma turrets at Navarro or heavy laser turrets in the Vault City.

Emergency Defensive Systems
At least 15 security turrets, that wielding heavy dual .223 miniguns with 800 pieces of ammunition each, were possible to encounter on the known oil rig levels. Possible security turrets status level was: Armed Alert, Normal or Deactivated Maintenance.

Security override options were controlled by the President :
 * Counter Insurgency – in the event of armed rebellion, Presidential Security keycard allows defensive systems to be turned on all, previously loyal, but now threatening units within an area. Defensive systems were programmed to attack most dangerous foe first. Operational - Entry levels only.
 * Emergency Defensive System Shutdown – temporarily shuts down active security systems on a level by level basis. Shutdown starts deep diagnostic.

Mainland outposts
Camp Navarro, camp at Mariposa Military Base and hypothetical other mainland outposts.

Camp Navarro
See also: Navarro
 * Name issue:
 * called Camp Navarro according to drill sergeant Dornan,
 * called a base by all senior staff there during an alert; Matt, Brotherhood of Steel member present in San Francisco, and Shi called it a base also,
 * for disinformation purposes Mariposa Military Base was called Navarro Military Base by old Chris.
 * Established as a stopover point for the maintenance and refueling of vertibirds. Air Traffic Control and Communication Center were present there also (in 2241 it was relatively new outpost, not fully staffed and affected by desertions).
 * Commanded by unknown rank elder officer called Base Commander, who was responsible for security of tanker staying in San Francisco docks also (holds a tanker FOB). Base Commander was supported by drill sergeant Dornan (the only person, who could be called duty officer also) and Quartermaster (responsible for armory and kitchen).
 * There were total 40 crew, including 30 troops. Not fully staffed Navarro guard unit (platoon equivalent) consisted of:
 * heavy (outdoor) squad equivalent - 11 guards equipped with Advanced Power Armors and Plasma Rifles, led by drill sergeant Dornan,
 * light squad equivalent - 10 less experienced guards equipped with Combat Armors (including Commander's door guard and Snookie, deathclaw's cell guard), the only encountered the Enclave light troops (notice: it was planned in van Buren, that the Enclave background character Arcade Grannon and encountered in Utah area the Enclave lost patrol leader would be equipped with the Enclave Combat Armors).
 * 2 dead unarmed Enclave Guards at crashed vertibird at Klamath canyon, possible find in Jul 2241, deserters from Navarro probably - vertibirds on its way from the oil rig to mainland destination points needed refueling in Navarro; one body – burned, one - in Advanced Power Armor, wreck accompanied by damaged Mr. Handy.



No one knows what happened to Navarro after Fallout 2 - with the destruction of the Enclave, the base may not have been able to maintain itself for more than a few months before needing to move on or change its operations. It's unlikely that the Brotherhood of Steel seized it after the events in Fallout 2, because they didn't have a strong military presence up North at the end of this game. They would have been interested in taking it, however - although they would have suffered serious casualties.

Temporary Camp at Mariposa Military Base
Main article: Example of field operation - Mariposa Military Base excavations

Temporary 4 tents-camp established for Enclave Patrolmen, scientists team of US Chemical Corps and construction crews performing excavations at destroyed old military base.

Other outposts
According to AHS-9 the Enclave had hidden bases all over the shards of old California. Presence of the other than Camp Navarro outposts or bases was confirmed by technicians there, as well as fact, that there wasn't any outposts north from Navarro. According to ACE the Enclave level of technology indicated that they had access to advanced manufacturing techniques and research facilities available to government agencies.

The Enclave had various other than the Poseidon oil rig installations, where dr. Henry used to work with cyber-genetic research program. One of those places was cybernetic maintenance facility.

Though not technically part of the Enclave, many powerful corporations benefited from the Enclave’s actions and their research facilities were protected during the firestorm of 2077. Chief among these was Poseidon Energy, whose facilities continue to be used by the broken remnants of the Enclave following the Chosen One’s assassination of the Enclave’s U.S. President and the destruction of their Poseidon oil tanker headquarters off of the California coast.

Other the Enclave outposts: There was no the Enclave presence concerned with the government-connected or Poseidon facilities like:
 * should have some person in charge,
 * were not default refueling stations for vertibirds, so it could have not vertibird landing pads and air traffic control facilities or it could be smaller then facilities present in Camp Navarro; Shi and Hubologists observed some vertibirs activity on San Francisco area, however Chosen One wasn't able to find any vertibirds there,
 * could have some communication facility and computer stations similar to ones present at Camp Navarro, operated by necessary staff,
 * could be hidden or as covered as Camp Navarro with its gas station, taken care by old Chris of (notice: quite similar issue to low staffed, "passive" Brotherhood of Steel outposts in the Northern California),
 * could be old government military facilities (as MacArthur Army Base) or could be old Poseidon industrial or research facilities (as Camp Navarro),
 * could be installation, where dr. Henry used to work with cyber-genetic research program,
 * could be base for EC Company or at least the Enclave Patrolmen (who were absent at Camp Navarro),
 * could be marked as two lighting points in California on the world map at the Enclave Executive Office war room and shouldn't be in collision with AHS-9 stash (there were no vertibirds presence in San Francisco area also),
 * Matt, Brotherhood of Steel member present in San Francisco, didn't inform Chosen One about this places; for some reason Chosen One couldn't find them and didn't ask about it in Camp Navarro; it is not certain however, if any of such outposts was located south of San Francisco (beyond the Fallout 2 world map),
 * Enclavers didn't like mainland, so service at one of mainland outposts could be a less preferred kind of work (it could result with lower quality of staff present there or encouraging of local recruitment, as it was at Camp Navarro).
 * located in old California and near its borders: San Francisco airfield with space shuttle present (Hubologists HQ), San Francisco and Los Angeles gasoline facilities, Sierra Army Depot, "Toxic Caves" storage area, Lost Hills Bunker, West Tech Research Facility or the Environmental Protection Agency,
 * located on van Buren area (southwest mainly, 2253): Hoover Dam, the Nursery, Bloomfield Space Center - where the Enclave members were present before the War only, Tibbets prison, Eagle Rock's AGRICOLA lab (and not exactly governmental, but funded by military Boulder Dome or Senator Todd Peterson's secret bunker, financed with help of Poseidon Oil and the Enclave),
 * Pentagon, located in the D.C. (2277).

Design names for military bases present in Fallout and Fallout 2 were :
 * Colusa for Camp Navarro; the real Colusa is much farther east and a little south of Navarro,
 * Base Omega for Mariposa Military Base; Mariposa Military Base was based on Fort Ord, an old military base that has been shut down near Monterey Bay,
 * FSEF for West Tech Research Facility.

Recruitment camp

Hypothetical recruitment outpost was a place, where replacements for Camp Navarro came form (replacements got to Navarro on foot, so their departure place can’t be the oil rig).
 * it should have some bureaucratic supply personnel - "paper-shuffling jackasses":
 * similar, but more numerous then Quartermaster present in Camp Navarro,
 * entitled to equip a new replacements with an Advanced Power Armor set (Advanced Power Armor was proper uniform for Camp Navarro guard), however not every time replacements could obtain it (like Chosen One),
 * they sent to Camp Navarro non-Enclave replacements such as women and mentally handicapped recruits (latter ones easy to be reconditioned);
 * replacements could be informed there about Camp Navarro entry password and should obtain some identification papers, demanded by Camp Navarro senior staff during alerts,
 * non-Enclave candidates should have access there, so they shouldn't be attacked by the Enclave patrols, however some anti-spy filtration procedures should be performed there,
 * it was coping with replacements, so it could have a drill sergeant.

Cybernetic maintenance facility

Another then Camp Navarro the Enclave facility. Cybernetic maintenance was the equivalent of cybernetic janitorial duty and because of it dr. Henry didn't want to work there. It could be Poseidon research facility.

MacArthur Army Base

Encountered in northern Utah area a lost Enclave patrol members were arguing where they are (Utah-Colorado-Kansas belt). However it is not certain, if searched by them MacArthur Army Base was located somewhere there (there is similar name US Army facility near real world Los Angeles). It is possible also, that they had different then MacArthur Army Base place of departure.

US Chemical Corps
US Chemical Corps (USCC) was US Armed Forces service branch. Its members were the Enclave's scientific staff, mentioned by Fallout Bible as officers. In year 2241 it was commanded by Lt. Col. dr. Charles Curling. Its dependence on the main command or to CHQ is not certain in light of fact, that dr. Curling reported about the Project directly to the Cabinet.

There were 16 generic USCC members present on the Test Subject Holding Level and Research and Development Project Area, 3 USCC scientists operated reactor computer (which was duty of AEC), dr. Schreber at Navarro and deserted dr. Henry in Shady Sands.

The Enclave needed all the scientists it can get. US Chemical Corps known works were:

The Project
The Project – creation FEV Curling-13 lethal virus. Human samples were obtained from the Vault Behavioral Project. It was also purpose of chems exchange with the New Reno mobsters (family Salvatore).

The experiment on Frank Horrigan
FEV extensively inoculated and half mechanized object reached extremally increased endurance (999 hp). Its FEV lowered intelligence had to be supported by constant drugs injections provided by permanent armor. Object was armed with ultimate weapons, like: After a few horrifically successful field tests (against local populations in the wasteland probably), Horrigan becomes the Enclave's solution to numerous sticky problems and once again he became Secret Service agent (March 2239).
 * Plasma Gun with burst of 3 x 30-70 dmg,
 * uncharged knife causing 15-30 dmg.

Intelligent deathclaws
Since 2235 the Enclave has experimented on deathclaws, attempting to create special fighting units for waging war in hostile environments. Animal handlers were used there. Known intelligent deathclaws were:
 * deathclaw pack (unit) at Vault 13, consisted of 6 mature deathclaws, including:
 * Gruthar, the pack leader (250 hp, claw 5-10 dmg),
 * Kerith, the current pack mother (310 hp),
 * Jul, the nest guard (310 hp),
 * three other 250 hp mature pack warriors: Dar - claw 5-10 dmg, Thearn and Valdis - claw 3-4 dmg (there is present at dialogue files generic deathclaw guard also),
 * Goris (development: 134->187 hp, 1-30 -> 1-47 dmg, IN 5->8),
 * 2 baby deathclaws - 50 hp (12 egg shells present at the nest also),
 * other deathclaws, who were sent into the desert surrounding Vault 13 to check for any escapees or witnesses,
 * other mothers mentioned by Kerith,
 * Xarn, tested in Navarro (250 hp, claw 5-10 dmg).

According to early versions of Fallout timeline many of the Enclave experiments on deathclaws were tested against Horrigan (year 2235).

Cyber-genetics
Cyber-genetics experiments concerned K-9 and Robodog units and were performed by dr. Schreber and dr. Henry: There was mentioned in Fallout Bible basic cybernetic maintenance facility (the equivalent of cybernetic janitorial duty), which suggests that there were more cybernetic units.
 * inexperienced Shreber's K-9 statistics: 127 hp, 16 dmg, 14 AP,
 * inexperienced Henry's Robodog (Cyber-Hound Mk. II, Personal Security Model) statistics: 100 hp, 16 dmg, 9 AP (some dr. Henry's papers was detailed plan for Cybernetic Canine Guard Unit).

Earlier research


Notice: before the War the Enclave was covert organization.
 * it was possible that the wannamingos were old Enclave experiments or even experiments from before the Great War,
 * works concerning Power Armor were conducted as follows:
 * before the War - there were some abandoned projects, developed together by the Enclave and Poseidon Energy, eg. technology level 9 Advanced Power Armor project codenamed ATHENA [[Image:Vanburen.jpg|20px]],
 * in 2198 the Enclave worked on various new technologies, including Power Armor variations; none of these were much of an improvement over the conventional old school Power Armor, and some were actually worse,
 * in 2215 under Presidential Order, the Enclave scientists begin to work on an upgraded version of Power Armor; many prototypes were developed and tested,
 * in 2220 the Enclave scientists developed a reliable version of the Mark II Power Armor (according to sgt. Dornan - Mark II Power Combat Armor).

Reconditioning center
Reconditioning center was mentioned by the President as the right place for the Chosen One wandering through the Executive Office (Horrigan's loyalty was reinforced by Presidential Directive through various conditioning and testing programs ). It is not certain, if drill sergeants were present there (Chosen One didn't find this place).

See also: Enclave Armed Forces - human resources

Engineering
Called "construction crews". It is not certain, if it was service branch, unit, subunit or civilian part of the Enclave. Enclave engineers known activities were mainly connected with civil engineering or even mining, eg.:
 * preparing Navarro facitity for military and vertibird purposes (it is not certain who laid minefield around Camp Navarro, however it was engineering duty also),
 * excavations at the former Mariposa Military Base - subordinated to Col. Sanders then (it is not certain who took care of explosives during Mariposa Military Base excavation, however it was engineering duty also).

Vertibird transport
Hypothetical transport unit with other than verti-assault duties. Staffed by so called “flyboys”. "Flyboys" were mentioned by Camp Navarro vertibird mechanic Raul, but they were not encountered by Chosen One there.

According to first class communication center technician at Camp Navarro - due to the complexity of vertibird operation it is doubtful that subversives could commandeer it (may be this statement could be associated with piloted by the Enclave guards veribird, that crashed on the Klamath area).
 * Chosen One encountered 3 undestroyed vertibirds (2 at Camp Navarro and 1 in New Reno), however according to Shi - the Enclave possessed a lot of those aircrafts.
 * One of vertibirds in Navarro was probably inoperable (according to the Enclave main command inoperable was something called “unit three”, one vertibird was repaired at Raul's hanger).
 * Total vertibirds number is unknown, but it should be adequate to the oil rig hangers or landing board/pads size:
 * it should be enough to transport up to 1000 dwellers from Vault 13 to the oil rig in a short time and to keep stand-by at least one verti-assault squad,
 * there was not enough aircrafts to propel FEV Curling-13 lethal virus over the mainland (Chosen One’s conclusion),
 * active vertibird number should be adequate to needs and maintenance possibilities of a few hundreds soldiers army (an equivalent of contemporary battalion).
 * Some vertibirds were equipped with Mr. Handy bots (60 hp) - its only known function connected with vertibirds operations was cargo operations support (encountered on the Klamath accident area and on the New Reno exchange area).
 * Navarro vertibirds purpose is unknown - there was no Mr. Handy bots, no verti-assault squad members (guards present only) or any other "flyboys" (vaste number of vertibirds was stationed on the oil rig probably).
 * Vertibird range was at least 175 miles distance between the oil rig and Navarro. Accessible were Klamath (may be one way trip), Redding, Gecko (threat only before Fallout 2 Restoration Project), New Reno and Vault 13. According to Shi vertibirds flew over San Francisco on the way form Navarro to the oil rig. Other transport issues were:
 * service for Mariposa Military Base excavations,
 * emptying of Arroyo,
 * deathclaws transfer to Vault 13,
 * transport provided for Secret Service mainland operations – huge Horrigan and 2 or 5 other troops (3 known events),
 * barter with Salvatore family from New Reno, possible everyday, performed by vertibird crew consisted of 2 female soldiers (150 hp ) equipped with Advanced Power Armors (DR + DT = 20) and Pancor Jackhammers, accompanied by unarmed Mr. Handy bot. According to Chosen One New Reno run was not pleasant duty - probably because Enclavers don't like to visit the mainland (according to floating texts).

Air traffic support facilities
Staffed by technicians and military mechanics. Two kind of specialists were present:
 * Air traffic control (notice: 2 crew in Camp Navarro - military technician and technician in lab coat),
 * Communication (notice: 2 crew in Camp Navarro - technicians in lab coats),
 * Maintenance (notice: 3 soldiers-mechanics in Camp Navarro), however vertibird maintenance do not have to be subjugated directly to CHQ (eg. there were verti-assault unit and “flyboys”).
 * military specialists - mechanics and technicians (uniformed soldiers - mechanics in greased uniforms, their uniforms look like Leather Armors),
 * 1st and 2nd grade technicians, uniformed with lab coats, like US Chemical Corps members.

Technical support
Provided by Enclave technicians (present at Navarro only) and oil rig operators. Volontaire recruitment on the oil rig for technician positions at Camp Navarro was possible.

IT branch
Staffed at Navarro by the Enclave technicians. Notices: (1) PoseidoNet computer station in Camp Navarro was not found by Chosen One, (2) on the oil rig no talk was possible with the main command troop encountered on PoseidoNet, (3) it is not certain, if talk with the main command by PoseidoNet from Gecko was possible after destruction of the oil rig, (4) 3 the oil rig reactor computer consoles were of Brotherhood of Steel origin.
 * Main command used the Enclave Vault-Research Control station connected to PoseidoNet, linked with some Navarro computer station and Poseidon Oil Reactor No. 5 computer station (at Poseidon Power Plant No. 12).
 * Another PoseidoNet stations on the oil rig were DataPlex 2000 SmarTerminals, located on Entry Level (one) and on Reactor Level (eight). There were about 500 names of its users. When illegal procedure detected (concerned probably with Security Passkey) further access to this terminal was denied and maintenance alert was sent.
 * Main Navarro computer was plugged into Enclave Net, as well as separated computer station on PMV Valdez, when connected with the oil rig docking facilities (Welcome to the Enclave greeting).
 * Seen by Chosen One large Enclave computers were staffed by 3 persons - known examples were:
 * the oil rig reactor computer, belonging probably to Atomic Energy Commission, staffed by 3 United Stated Chemical Corps researchers,
 * Camp Navarro main computer, staffed by 3 Enclave technicians (senior computer analyst was in charge there).

Power supply

 * Navarro power generator operated by Enclave technicians,
 * the oil rig reactor operated by United States Chemical Corps members (a kind of exeption from Enclave technicians or oil rig operators; facility was supervised by Atomic Energy Commission).

Notice: the oil rig produced significant amounts of smog or steam also (according to tanker to derrick movie).

Oil rig operations
Oil rig operators were mentioned as counterparts for the Enclave technicians at Navarro by A. Ron Meyers (tanker captain).

Navy issues
Despite of fact, that Pacific Fleet was ordered to the Poseidon deep sea oil derrick, it is not certain, if after the War the Enclave controlled any operable US Navy ships, because:
 * there were empty, huge docking area prepared for tankers fleet on the oil rig and no sailors were encountered on the oil rig,
 * known ships had drifted ashore, eg. Chinese nuclear submarine in San Francisco area or US aircraft carrier in Washington area.



The Enclave naval facilities and vessel were: There was no coast & docking facilities in Camp Navarro.
 * Poseidon Oil naval IFF system on the oil rig, connected with the oil rig external guns ,
 * empty docking place for PMV Valdez on the oil rig as well as docking area prepared for tankers fleet,
 * PMV Valdez docked in San Francisco.

Notice: Shi in San Francisco were able to build some boats, probably for fishery purposes.

Cooperation with the United States Secret Service
Main article: Secret Service

The United States Secret Service (USSS) was law enforcement agency responsible both for protection of state secrets and the President’s protection. Before the War Secret Service could be supervised by the United States Department of Treasury, as well as other law enforcement agencies. After the War USSS could became a part of the Enclave armed forces or just cooperate with them. The only proof, that Secret Service could be part of armed forces is Fallout Bible statement, that USSS agent Frank Horrigan has always been loyal to the armed forces (however he was a troop for some time also).

Examples of cooperation with the armed forces (according to Fallout Bible):
 * there were soldiers, who wanted to accompany Horrigan on his missions, or witnessed some murders or tortures committed by him (eg. Sgt. Granite),
 * during execution committed on “farmers” family at the beginning of September 2241 Horrigan was accompanied by two the Enclave guards,
 * Horrigan was present during Vault 13 seizing by verti-assault squads.

Other facts concerning USAF - USSS cooperation:
 * may be USSS agents protected Executive Office and could be presidencial bodyguards also (in-game fact: troopers on Executive Office level, equipped with Advanced Power Armors, especially and mainly with guard duties).
 * During simple assassinations Horrigan was accompanied by 2 troops equipped with Advanced Power Armors and miniguns. During deathclaws' community extermination at Vault 13 he was by accompanied 5 troops.

Procedures
See: Enclave Armed Forces procedures