Enclave Department of the Army

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

Main article: Enclave

Overview


The United States Armed Forces in year 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 population (notice: contemporary US Army battalion has 300 – 1000 soldiers),
 * a company was probably the highest grade unit organization (the only known example - Enclave Control Company). It is not certain how much crews had the Enclave company, however the smallest contemporary US Army company consists of 62 crews.

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 (Article Two, Section 2, Clause 1). :
 * Presidential Directives could concern armed forces conditioning and testing programs (known example - Horrigan's conditioning).
 * Presidencial decisions could concern major importance scientific projects connected with military actions (known example - decision to go take the Vault 13 inhabitants as test subjects for the Project, which scrambled the vertibird unit),
 * Presidential Orders could concern military research and data protection (known example - power armor research).

The President was in charge with the oil rig Emergency Defensive Systems (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 (notice: in van Buren "central headquarters" term was used for Fort Abandon, when it was seized by renegade NCR forces for its main base).
 * Main command – name used on PoseidoNet by the Enclave troop,
 * CHQ – col. Sanders’es holodisc addresse.

Features:
 * Supervised by the President or by member of his Cabinet possesing Secretary of War powers (if appointed).
 * Its superior powers concerning United States Chemical Corps are not certain in light of fact, that dr. Curling reported about the Project directly to the Cabinet.
 * Secret Service operations on the mainland were secret to at least some main command staff.
 * Col. Sanders was subjugated to CHQ, when was overseeing the Mariposa Military Base excavations.
 * Main command used the Enclave Vault-Research Control station connected to PoseidoNet.

Internal security
Military police. Internal counterpart for externally used verti-assault squads. Subordinated to main command (notice: before the War Mariposa Military Base was protected by military police security squad).

Engineering
Called "construction crews". It is not certain, if it is 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 layed 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).

Air forces 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, their uniforms look like Leather Armors, mechanics in greased uniforms),
 * 1st and 2nd grade technicians, uniformed with lab coats, like US Chemical Corps members.

Vertibird transport
Hypothetical transport unit with other then 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).
 * There were 3 undestroyed aircrafts encountered - 2 at Camp Navarro and 1 in New Reno (however according to Shi there were numerous vertibirds).
 * One of vertibirds in Navarro was probably inoperable (notice: according to the Enclave main command inoperable was something called “unit three”, one vertibird was present at Raul's hanger).
 * Total vertibirds number is unknown:
 * 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),
 * the vertibird number should be adequate to needs and maintenence possiblities of a few hundreds soldiers army (an equivalent of contemporary batallion).
 * 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".
 * 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).

IT branch
Staffed by the Enclave technicians (as well as Navarro power generator, at Navarro at least). 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 conected 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).

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).

US Armed Forces executive branch
Counterpart for prewar US Army and US Marine Corps (US Army mentioned at Fallout Bible and its remnatns were present; marine background EPA Director of Security was planned).

Enclave Control Company
The Enclave Control Company (EC Company) was the only unit responsible for perimeter defense.
 * Part of this company was sgt. Granite's squad of 4 experienced troops (200 hp). In Fallout 2 ending this squad was used as ad hoc support on the oil rig. 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 also of Enclave Patrolmen. Encountered on Navarro perimeter the Enclave Patrolmen claimed places of encouners as the Enclave territory and called the PC an illegal alien (if not a part of ECC - Enclave Patrolmen could be another unit, because of their Cap. Pickard rank - a company very likely).
 * The Enclave Patrols on Navarro perimeter were light teams of 4 Enclave Patrolmen (150 hp). More rare, but still possible were 8 troop squads - 2 teams in fact. They were reporting to some base, but they were absent at Camp Navarro. Patrols were equipped with Advanced Power Armors and armed with advanced one hand weapons, like:
 * Pulse Pistol,
 * Plasma Pistol,
 * Gauss Pistol,
 * H&K G11.
 * The Enclave Patrolmen took part in Mariposa Military Base excavations also. According to remnants found there (among them cap. Pickard and sgt. Bracks bodies) they were equipped with Advanced Power Armors and armed with:
 * Cattle Prods,
 * energy pistols,
 * Plasma Grenades (and probably Plasma Rifles and Laser Rifles also - it was supermutants equipment).

Melchior, miner form Redding, was kidnapped to work during Mariposa Military Base excavations by the Enclave patrol (according his son he went away with some man dressed in metal clothes), while slave workers there were caught by (verti)assault squads.

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 (it could be an equivalent) even to as distant place as Gecko. It was stationed on the oil rig (absent in Navarro). Verti-assault unit was equipped with: Known verti-assault operations were connected with the Project (providing FEV Curling-13 test objects). It was: Some assault squads had caught slave workers for Mariposa Miliary Base excavations also.
 * miniguns with cartridge cases - Rockwell: CZ53 Personal Minigun or Avenger Minigun (according to Fallout 2 intro - at least 3 pieces),
 * plasma weapons (according to the Enclave main command), which was similar to Navarro outdoor guards, who were wielding Plasma Rifles.
 * 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 (which made at least platoon size unit with at least 14 assault troops: CO, his sergeant and two at least six troop squads),
 * verti-assault unit used at least one or two aircrafts, so one squad - one vertibird rule was possible.

The oil rig guard unit
There was Guard Barracks level on the oil rig where 22 troopers were present (including less experienced squad of 140 hp troopers, equipped with Power Armors and Gauss weapons only, present at the Guard Barracks bedroom). Guard unit provided security for Test Subject Holding Level (detention cells) probably. 8 troopers were present there (200 hp, Advanced Power Armors). Troopers present on presidencial area carried guarding duties also.

All 79 troops (83 together with Sgt. Granite's squad) 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 some teams (notice: Bravo and Gamma were referred at floating texts, so Alfa team should be present also, Gamma stands for seventh letter of alphabet, rather then third, so there could be even 7 teams).

During execution committed on “farmers” family at the beginning of September 2241 Secret Service agent Horrigan was accompanied by two the Enclave guards (however they could be USSS bodyguards also).

External defenses
Guns connected with naval IFF system, mentioned by tanker captain - 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. used for close airdefense),
 * plasma turrets at Navarro or heavy laser turrets in the Vault City (demanding significant amounts of energy).

Emergency Defensive Systems
At least 15 security turrets, that wielding heavy dual .223 miniguns with 800 pieces of ammunition each (at least 12k pieces of ammunition together), 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 (accessible from DataPlex 2000 SmarTerminal at the Entry Level also):
 * 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.

Camp Navarro
See also: Navarro
 * 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).
 * Called Camp Navarro according to drill sergeant Dornan. Called a base by all senior staff during an alert. Matt, Brotherhood of Steel member present in San Francisco, and Shi called it a base also.
 * 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.

Mariposa Military Base excavations
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 then 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 then 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 it and didn't ask about it in Camp Navarro; it is not certain however, if such outpost was located south of San Francisco (beyond the Fallout 2 world map).
 * 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 extensivly 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, which was the equivalent of cybernetic janitorial duty.
 * 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).

Navy issues
Despite of fact, that Pacific Fleet was ordered to the Poseidon deep sea oil derrick (March 30 2076, Sierra Depot GNN Transcript), 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,
 * known ships had drifted ashore, eg. Chinese nuclear submarine in San Francisco area or US aircraft carrier in Washington area,



The Enclave naval facilities were: There was no coast & docking facilities in Camp Navarro (however it didn't have to be established right in the place of the pre-war Poseidon refinery).
 * Poseidon Oil naval IFF system on the oil rig, connected with the oil rig external guns, called "Poseidon guns" by tanker Captain),
 * empty docking place for PMV Valdez on the oil rig located at huge and v docking area prepared for tankers fleet (no sailors encountered on the oil rig),
 * PMV Valdez docked in San Francisco.

Notice: Shi in San Francisco were able to buid 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 the part of 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). Concerning 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 commited 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:
 * USSS agents protected Executive Office and could be presidencial bodyguards also (eg. in-game guards on Executive Office level, equipped with Advanced Power Armors).
 * 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

Human resources
See: Enclave Armed Forces - human resources

See also:
 * Categorised the Enclave appearance