Defiance Industries

Defiance Industries
Defiance Industries logo.png
Corporation Profile
Founding YearDecember 2577[1]
AffiliationLyran Commonwealth
HeadquartersMaria's Elegy
(Hesperus II)[2]
Manufacturing Plant(s)

With its Hesperus II facility the largest surviving single site BattleMech factory after the fall of the Star League, Defiance Industries was the foundation of the militaries of the Lyran Commonwealth, Federated Commonwealth, and Lyran Alliance.


With the opening shots of the Reunification War, the Star League reached an agreement with Archon Viola Steiner in 2577 to construct a factory jointly shared by both parties to ensure proper resupply of 'Mechs during the Periphery campaigns. To protect the factories from assault or sabotage, workers spent ten years hollowing out one of the Myoo Mountains of the South Whitman continent with the factories built inside.

With the fall of the Star League, control of Defiance Industries passed to the Lyran Commonwealth, who assigned control to the Brewer family who have ensured its prodigious production rate continues even with the technological decline of the Succession Wars and repeated attacks to knock it out. So important is the facility to Lyran Commonwealth Armed Forces and the Lyran nation, nearly 14 attempts by other Successor States to capture or destroy it have been launched. To date, control of the factory has only been wrested from Lyran hands once, falling to the concentrated efforts of the Word of Blake during the Jihad.

The Furillo facilities however are much less storied. Formerly the Tolsand WarWorks, Defiance acquired the aging plant in 2992 and poured considerable funds into upgrading and updating the factory. Located near the city of Snohomish Springs in the shadow of the Mont Vert on the Dereka continent, the Furillo assembly lines are primarily configured to construct light and medium designs, leaving it overshadowed by the Hesperus II factories in the eyes of notoriously heavy LCAF forces, at least until the Blakist Jihad made it the temporary headquarters of the corporation.

The company's newest and most secretive production facility is its manufacturing annex on Kwangjong-ni. A former Rim Worlds Republic factory located underwater in the world's massive Lost Sea, Defiance spent considerable sums to locate and refurbish it to function. Acting as a production site for the company's R&D efforts, the Kwangjong-ni plant had three easily reconfigurable production lines which reached full production capacity during the Jihad. To protect it from both attack and prying eyes, the plant's actual location is kept top secret, large cargo subs carrying needed parts in and finished designs out the only method of reaching it, the subs' home port heavily defended by the planet's militia.[3]


Defiance Industries rose to prominence with the fall of the Star League. Archon Jennifer Steiner ordered Gerald Brewer, formerly the Star League's liaison to the Commonwealth government, to take control of the factories on behalf of the Commonwealth.[4] Since then, Defiance Industries of Hesperus II has been at the center of at least seventeen major battles for control of the world. Major attacks of the First Succession War were waged largely by massive WarShip fleets, but by 2837, the fortified location of the Defiance Industries facility, and the resulting ability to seal the doors and build fresh units to push back attackers, would become a key part of the planet's defenses.[5]

The factory's output was an immediate source of strength for the Commonwealth. In 2789, General Takashi Myoo of the Commonwealth Military Press estimated that Defiance Industries provided over 30% of the LCAF's BattleMech production, a number that only increased as other plants were destroyed in the devastation of the First Succession War.[6] By the end of the Third Succession War, Defiance Industries was unquestioned as the largest 'Mech plant in the Inner Sphere.[6]

In 3012, the Hesperus II facility was the only manufacturer to build the awesome Atlas BattleMech in large numbers.[1] Defiance expanded into vehicle design in 3020 when they unveiled the Patton and Rommel tanks[7] after 25 years of development. They followed those tanks with a new 'Mech design, the Hatchetman, three years later.[8] In 3025 Defiance began producing the Enforcer and Valkyrie BattleMechs as a way to bolster the FedCom Alliance.[9] While Defiance Industries' Enforcer line became one of the many casualties of the Jihad, the Valkyrie continued production at the facility[2][10]

Defiance Industries benefited greatly from the technological explosion of the 3050s, but following the Lyran secession from the Federated Commonwealth, the fledgling Lyran Alliance relied on Defiance scientists for new technologies. DI was first tasked with reverse engineering class-20 autocannons from Clan salvage, and later developing its signature heavy Gauss rifle and a production model of the light engine.[11]

In 3068, the Word of Blake attacked Hesperus II[12] with WarShips. By 3070, Blakist forces had taken the planet[13] which forced Defiance to rely on its smaller plants on Furillo and Kwangjong-ni as its main production lines.[14] As a result of the damage taken by the various Defiance facilities, Defiance Industries stock plummeted in 3070, with a war bonds campaign launched by Defiance across the entire of the Lyran Alliance only managing to slow the drop.[15] While they controlled the planet, the Blakists converted several Hesperus II production lines to produce their own preferred BattleMech variants. The Blakists were eventually pushed off Hesperus II, but not before they left they destroyed several production facilities and damaged many more.[14]

By the later years of the Jihad, production of the Zeus assault 'Mech stopped on Furillo.[16] The damage to the Hesperus II lines also meant that even by 3079 the Battle Hawk, Sentinel, Cobra, Gunslinger, Fafnir, and Banshee BattleMechs were no longer in production on Hesperus. The company started production on five other BattleMech designs at that time, however.[17] In the immediate aftermath of the Jihad, it was widely anticipated that whatever Defiance was doing at its Kwangjong-ni plant - a secret R&D facility that foreign intelligence agencies found very difficult to penetrate - the results would soon be adding to the rebuilding efforts being undertaken by the LAAF.[18]

With the formation of the Republic of the Sphere and the transfer of much of the Skye Province of the Lyran Alliance to the Republic, Hesperus II was incorporated into the Bolan Province of the Alliance. This was quite a boon for the province, despite the damage the mammoth Defiance Industries plant had taken. By 3085 the Hesperus II plant had at least fifteen different BattleMech production lines running alongside a dozen Combat Vehicle lines and a smaller number of battle armor and DropShip lines. Despite the drop in production compared with that of the mid-3070s, the Hesperus plant was still the most productive defense manufacturing site known to exist; however, the damage suffered during the Jihad was more extensive than had originally been believed. As a result, the company estimated the Hesperus II plant would not return to prior production levels until the 3120s.[19] Defiance Industries offset some of these losses when it absorbed Gray Death Technologies, gaining full control of the company in the wake of the Blakist attack on Glengarry. GDT's battlesuit manufacturing lines were relocated to DI's plant on Furillo.[20]

Defiance also began experimenting with producing Clan-grade equipment in-house during the Jihad. Defiance Industries replicated the Advanced SRM launcher used on Clan battle armor for a new version of the Gray Death Strike battlesuit.[21] The Furillo facility began producing a Clantech extralight fusion engine for their experimental Axman,[22] while Kwangjong-ni produced a prototype Demolisher II variant with Clan-grade Ultra AC/10s.[23] While these designs were ultimately downgraded due to their astronomical cost, they provided DI researchers with valuable insight into the production of new technology.[24]

The Hesperus II facility was damaged once more in the Dark Age by twin invasions from Clan Wolf and Clan Jade Falcon. Though the facility stayed in Lyran hands, production was disrupted in the process of defending the facility. Defiance Industries leadership opted to invest heavily in the Furillo facility, which was projected to match the storied output of Hesperus II by the end of 3150.[25]

During this time, Defiance began putting Clan-spec matériel into general production, resulting in new mixed-technology variants of many designs. Designs ranging from flagship 'Mechs like the Atlas[26] and Zeus[27] to workhorses like the Sentinel[28] and Locust[29] were redesigned using new higher-performance equipment.


Duke Thelonius Gracchi was general manager of the company's Furillo plant.[30]

Following Vedet Brewer relinquishing the Archonship and fleeing Tharkad in 3143, control of Defiance Industries would fall to George Dyson.[31]


"DefHes Knows 'Mechs!"
  — Marketing slogan used in 3132[32]


Defiance Industries has manufacturing centers on the following planets:


Components produced on Furillo:[16][33][34][35][36][37][38][39][40]
Component Type
Battle Armor
Gray Death Scout[16][41] Light battle armor
Gray Death Infiltrator Suit[33] Medium battle armor
Gray Death Standard[16][42] Medium battle armor
Gray Death Strike[43] Medium battle armor
Gray Death Heavy[16][44] Heavy battle armor
LCT-1V Locust[16][1] Light BattleMech
LCT-3S Locust[16][34] Light BattleMech
LCT-7S Locust[45] Light BattleMech
WSP-1A Wasp[16][1] Light BattleMech
WSP-1S Wasp[16][34] Light BattleMech
WSP-3S Wasp[16][46] Light BattleMech
ASN-30 Assassin[16] Medium BattleMech
Clint (unknown variant)[16] Medium BattleMech
Cobra (unknown variant)[16] Medium BattleMech
SCP-12S Scorpion[16][36] Medium BattleMech
UZL-3S Uziel[16][35] Medium BattleMech
AXM-1N Axman[16][39] Heavy BattleMech
AXM-2N Axman[16][39] Heavy BattleMech
AXM-3S Axman[16][39] Heavy BattleMech
AXM-6T Axman[16][37] Heavy BattleMech
AXM-6X Axman[38] Heavy BattleMech
DFN-3S Defiance[16][40] Heavy BattleMech
ZEU-6S Zeus[1] Assault BattleMech
Stalker (unknown variant)[16] Assault BattleMech
AS7-K2 Atlas[47] Assault BattleMech (discontinued by 3151)[48]
DI Multipurpose VTOL[49] VTOL
Fensalir[50] WiGE
Bergan VII Locust [34]
Defiance SLAM Endo Steel Scorpion[36]
Defiant V Endo Steel Defiance[40]
Dorwinion AXM Standard AXM-1N Axman[39]
Dorwinion AXM Endo Steel AXM-6T Axman[37]
Foundation E50 Endo Steel Uziel[35]
Irian Second Generation Class 20 Endo Steel Wasp[34]
Fuel cell
Defiance 210 HydroCell Uni[51]
Light Fusion Engine
Edasich 300 Light Defiance[40] and Scorpion[36]
Extralight Fusion Engine
Defiance Clan-Grade 240 XL LCT-7S Locust[45]
GM 300 XL Uziel[35]
Magna 260 XL AXM-1N Axman[39]
VOX 325 XL AXM-6T Axman[37]
Jump Jets
HildCo Model 12 AXM-1N Axman[39]
Rawlings 50 Uziel[35]
Rawlings 52 Wasp[34]
Armor (BattleMechs & Combat Vehicles)
Maximillian 100 Uziel[35] and Scorpion[36]
Ferro-fibrous Armor
Durallex Heavy ferro-fibrous Defiance
Kallon Unity Weave ferro-fibrous w/CASE AXM-1N Axman[39]
Lexington Ltd. Light ferro-fibrous w/CASE AXM-6T Axman[37]
Communications System
Angst Discom Defiance[40]
Johnston Wide Band AXM-1N Axman[39]
Neil 6000-g Uziel[35] and Scorpion[36]
Neil 8000 AXM-6T Axman[37]
Targeting-Tracking System
Angst Accuracy Defiance[40]
Rander Pinpoint-HY AXM-1N Axman[39]
RCA Instatrac Mark X AXM-6T Axman[37]
RCA Instatrac Mark XXII Uziel[35] and Scorpion[36]
Thunderbolt 15
Defiance Bombard AXM-6T Axman[37]
Small Laser
Defiance B3S Wasp[34]
Medium Laser
Defiance B3M Locust[34]
ER Medium Laser
Defiance Model XII AXM-6T Axman[37]
Intek AXM-1N Axman[39]
Defiance C9M Extended-Range (Clan-spec) LCT-7S Locust[45]
Large Pulse Laser
Sutel Precision Line AXM-1N Axman[39]
Defiance 1001 Defiance[40]
Luxor Devastator-20 AXM-1N Axman[39]
Defiance Shredder Uziel[35]
LB 10-X AC
Defiance Shredder Scorpion[36]
Harvester 20K Scorpion[36]
Zippo Wasp[34]
Defiance Razorback Goliath[52]

Hesperus II[edit]

Components produced on Hesperus II:[53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][17][75]
Component Type
Battle Armor
Inner Sphere Standard[76][17] Medium battle armor
BH-K305 Battle Hawk[53] Light BattleMech
Valkyrie (unknown variant)[77] Light BattleMech
VLK-QS5 Valkyrie[78] Light BattleMech
TRC-4B/CLN-4V Chameleon[79][80][81] Medium BattleMech
CBR-02 Cobra[54] Medium BattleMech
EFT-7X Eisenfaust[55][17] Medium BattleMech
GST-10 Ghost[56][17] Medium BattleMech
GRF-1N Griffin[1][17] Medium BattleMech
GRF-1S Griffin Medium BattleMech
GRF-1DS Griffin[57][17] Medium BattleMech
GRF-6S Griffin[58][17] Medium BattleMech
HCT-3F Hatchetman[1] Medium BattleMech
HCT-5S Hatchetman[57] Medium BattleMech
HCT-7S Hatchetman[17] Medium BattleMech
NGS-4S Nightsky[17] Medium BattleMech
TFT-A9 Thunder Fox[17] Medium BattleMech
STN-3L Sentinel[59] Medium BattleMech
STN-6S Sentinel[82] Medium BattleMech
GLH-2D Galahad[17] Heavy BattleMech
ARC-2R Archer[1][17] Heavy BattleMech
ARC-5S Archer[57][17] Heavy BattleMech
PPR-5S Salamander[60] Assault BattleMech
ZEU-6S Zeus[1][17] Assault BattleMech
ZEU-6Y Zeus[75] Assault BattleMech
ZEU-9S Zeus[57][17] Assault BattleMech
ZEU-11S Zeus[83] Assault BattleMech
Goliath (unknown variant)[17] Assault BattleMech
GUN-1ERD Gunslinger[61] Assault BattleMech
BNC-3E Banshee[84] Assault BattleMech (discontinued by 2485)[85]
BNC-3S Banshee[86] Assault BattleMech
BNC-5S Banshee[57] Assault BattleMech
AS7-D Atlas[1][17] Assault BattleMech (discontinued by 3151)[87]
AS7-S Atlas[57][17] Assault BattleMech (discontinued by 3151)[87]
AS8-S Atlas[88] Assault BattleMech
AS7-D-H Atlas II [17] Assault BattleMech (discontinued by 3151)[87]
AS7-DK-H Atlas II[87] Assault BattleMech
BRZ-A3 Berserker[62][17] Assault BattleMech
FNR-5 Fafnir[63] Assault BattleMech
Hunter[57][64][17] Tracked Vehicles
Hunter Amphibious Tank[74] Tracked Vehicles
Manticore[1][57][17] Tracked Vehicles - Heavy Tank
Manticore II Heavy Tank[65] Tracked Vehicles
DI Morgan[66][17] Tracked Vehicles - Assault Tank
DI Schmitt Tank[67] Tracked Vehicles
Patton[1][57][68][17] Tracked Vehicles - Tank
Rommel[1][57][68][17] Tracked Vehicles - Tank
Rommel Howitzer[69] Tracked Vehicles
Saxon APC[70][17] Hovercraft
Fortune[71][17] Wheeled Vehicles - Assault Vehicle
Demolisher II[72][17] Tracked Vehicles - Heavy Tank
SturmFeur[17] Tracked Vehicles - Assault Tank
Gürteltier[73] Tracked Vehicles
Avenger[57][17] DropShip
Interplanetary Drive - DropShips
GM 9800i Avenger[57]
Chariot Type II Hatchetman[57]
Chariot Type II-b Eisenfaust[55]
Chariot Type III Zeus[57]
Chariot Type IV Endo Steel Salamander[60]
Defiance 450 Endo Steel Cobra[54]
Defiance Berserker Berserker[62]
Defiant V Sentinel[59]
Earthwerk GRF Griffin 1DS[57] and Griffin 6S[58]
Earthwerk Archer[57]
Enran TXS2A Standard Ghost[56]
Foundation 210 Banshee[57]
Foundation Type 10X Atlas[57]
Foundation Type 220 Fafnir[63]
Maltex 40 Battle Hawk[53]
Star League XT Gunslinger[61]
Fuel cell
Doorman Amphib 140 Hunter Amphibious[74]
Fusion Engine
DAV 220 Fortune[71]
Edasich Motors 195 Rommel Howitzer[69]
GM 175 Saxon[70]
Magna 175 Hunter[64]
Magna 260 Rommel and Patton[68]
Pitban 240 Sentinel[59]
VOX 225 Cobra[54]
Vlar 300 Demolisher II[72] and Fafnir[63]
Light Fusion Engine
Defiance 275 Light Griffin 6S[58]
Extralight Fusion Engine
DAV 220 XL DI Schmitt
Defiance Exalto 325 Shipped to Tharkad for CRD-10S Crusader[89]
Edasich Motors 180 XL Eisenfaust[55]
GM 150 XL Battle Hawk[53]
GM 300 XL DI Morgan[66] and Ghost[56]
LTV 400 XL Berserker[62]
Pitban 320 XL Salamander[60]
Vlar 300 XL Gürteltier[73]
Vlar ClanTech 300 XL AS8-S Atlas[88]
VOX 225 XL Gunslinger[61]
Fusion engine - XXL
GM 280 XXL Manticore II[65]
Jump Jets
HildCo Model 12 Gunslinger[61]
Luxor 2-Q Hatchetman[57] and Battle Hawk[53]
Rawlings 55 Griffin 1DS[57] and Griffin 6S[58]
Armor (BattleMechs & Combat Vehicles)
ArcShield Heavy II Saxon[70]
Durallex Medium Eisenfaust[55]
Durallex Heavy Rommel and Patton[68]
Durallex Heavy w/CASE Shipped to Styk for Victor[57]
Durallex Special Heavy Atlas[57] and Berserker[62]
Durallex Special Heavy V2 Fafnir[63]
Glasgow Limited w/CASE Salamander[60]
Kevlar 5000 Gunslinger[61]
Longanecker PlastiSteel Banshee[57]
Maximillian 100 Archer[57]
Starshield A w/CASE Griffin 1DS[57] and Griffin 6S[58]
Starshield Ultra-Tech Stealth Ghost[56]
StarSlab 6 Fortune[71] and Demolisher II[72]
StarSlab 5.5 Standard Hunter[57][64]
Valiant Lamellor Sentinel[59]
Ferro-fibrous Armor
Durallex Super Medium ferro-fibrous Hatchetman[57]
Durallex Special Heavy ferro-fibrous Rommel Howitzer[69] and Manticore II[65]
Lexington Ltd. High Grade ferro-fibrous Cobra[54]
StarSlab Neptune/3 Heavy ferro-fibrous Hunter Amphibious[74]
StarSlab/6 ferro-fibrous DI Schmitt[67]
Glasgow Limited Primo ferro-fibrous Zeus[57]
Paulina Heavy ferro-fibrous Battle Hawk[53]
StarSlab 4 ferro-fibrous w/CASE Gürteltier[73]
Communications System
Angst Discom w/Guardian ECM Fafnir[63]
Johnston Q-Band Fortune[71]
Nashan Comm-i U-284 w/ECM Ghost[56]
Nashan Quartet ComSy w/Guardian ECM Gunslinger[61]
Neil 6000 Griffin 6S[58]
Neil 6000G Eisenfaust[55]
Neil 6000V DI Morgan[66]
Neil 9000 Demolisher II[72] and Berserker (equipped with Guardian ECM)[62]
StarLink/Benicia Model AS829G Sentinel[59]
TharHes KR-A P/Com Saxon[70]
TharHes Calliope 270 Cobra[54]
TharHes Mini-Talk Hunter,[64] Hunter Amphibious[74]
TharHes Hm-10 Salamander[60]
TharHes Thalia HM-22 Battle Hawk[53]
TharHes Muse 54-58K Rommel, Rommel Howitzer,[69] Patton,[68] Gürteltier (equipped with ECM and C3 slave)[73] and Manticore II[65]
TharHes Muse 65-128K DI Schmitt[67]
Targeting-Tracking System
Angst Accuracy Fafnir[63]
Angst Clear View 2A Demolisher II[72] and Berserker[62]
Angst Clear View 2AV DI Morgan[66]
Nashan Diana Mark II Gunslinger[61]
Nashan Trac V-102 Ghost[56]
RCA Instatrac Mark X Griffin 6S[58]
RCA Instatrac Mark XXII Eisenfaust[55]
Scantrex DualTac Fortune[71]
Targa-7, Vid-Com-17 Sentinel[59]
TharHes AGART Hunter[64]
TharHes AGART V3 Hunter Amphibious[74]
TharHes Ares-7 Salamander[60]
TharHes Ares LM Cobra[54]
TharHes Ares HM-22 Battle Hawk[53]
TharHes Mars1 Saxon[70]
TharHes Mars5 Rommel, Rommel Howitzer[69] and Patton[68]
TharHes Mars8.2 w/Targeting Computer Gürteltier[73]
TharHes Mars 9.4 DI Schmitt[67]
TharHes TargiTrack w/Advanced Targeting Computer Manticore II[65]
Small Laser
Defiance A5L Rommel and Patton[68]
Defiance B-1A Sentinel[59]
Defiance B3S Banshee[57]
Shipped to Sudeten for Warhammer[57]
Medium Laser
Defiance B3M Banshee, Atlas, Avenger,[57] Cobra[54] and Salamander[60]
Shipped to Coventry for Phoenix Hawk, Commando, Firestarter, Stinger[57]
Shipped to Pandora for Rifleman and Condor
Shipped to Tharkad for Wolfhound[57]
Diverse Optics Type 18 DI Schmitt[67]
ER Medium Laser
RAMTech 1500Z Griffin 6S[58]
Defiance C9M Extended-Range (Clan-spec) AS8-S Atlas[88]
Medium Pulse Laser
Defiance P5M Hatchetman, Battle Hawk,[53] Archer and Zeus[57]
Shipped to Pandora for BattleMaster
Shipped to Styk for Victor[57]
Shipped to Sudeten for Warhammer[57]
Large Laser
Defiance B3M Avenger[57]
ER Large Laser
Defiance C9L Extended-Range (Clan-spec) AS8-S Atlas[88]
Defiance 1001 DI Morgan,[66] Ghost,[56] Gürteltier,[73] Berserker[62] and Griffin 6S[58]
Heavy PPC
Defiance 980 Manticore II[65]
Plasma Rifle
Defiance NovaShot Model 2 Eisenfaust[55]
Gauss Rifle
Poland Main Model A Gürteltier[73]
Heavy Gauss Rifle
Defiance Hammerfist Fafnir[63]
Shipped to Furillo for Fensalir[50]
Hotshot Rommel and Patton[68]
Purity L-Series DI Schmitt[67]
Zippo Hunter[57][64] and Berserker[62]
Shipped to Sudeten for Thunderbolt[57]
Defiance Killer Type T Patton[68]
Defiance 'Mech Hunter Atlas and Rommel[57][68]
Shipped to Tharkad for Lightning[57]
LB-X Autocannon
Defiance Shredder LB 2-X AC[90]
Defiance Disintegrator Hatchetman[57], Demolisher II[91] and Fortune[92]
Shipped to Tharkad for Barghest[91]
Ultra AC/20
Defiance Thunder Demolisher II[91]
Shipped to Coventry for Blitzkrieg[93]
Rotary AC/5
Mydron Tornado DI Schmitt[67]
Improved Heavy Gauss Rifle
Defiance Unknown Model Shipped to Arc-Royal for experimental Annihilator[94]
Defiance Annihilator Used on AS8-S Atlas[88]
Shipped to Capella for Lightning[95]
Streak SRM-2
Defiance Streak Sentinel[59]
TharHes Multi-Missile Gürteltier[73]
Defiance Doombud ClanTech AS8-S Atlas[88]
Enhanced LRM-10
Delta Dart II Hunter Amphibious[74] and Manticore II[65]
Coventry Starfire w/Artemis IV FCS Griffin 6S[58]
TharHes Reacher DI Schmitt[67]
Defiance Doombringer (Clantech) Shipped to Tharkad for CRD-10S Crusader[89]
Naval Dart S-Series Hunter Amphibious[74]
Mine Dispenser
Defiance Aqua-Drop Hunter Amphibious[74]
Machine Gun
Kicker Saxon[70]
Light Machine Gun
ScatterGun DI Schmitt[67]


Components produced on Kwangjong-ni:[96][97][98]
Component Type
FS9-81X Firestarter[99] Light BattleMech
FS9-N Mirage II[100] Light BattleMech
MON-266 Mongoose II[96][97] Medium BattleMech
MON-267 Mongoose II[96][97] Medium BattleMech
MON-268 Mongoose II[96][97] Medium BattleMech
BNC-9S Banshee[101] Assault BattleMech
BNC-12S Banshee[102] Assault BattleMech
Zeus[97] Assault BattleMech
ZEU-X4 Zeus X[98] Assault BattleMech
Alshain Type69-40S Mongoose II[96]
Chariot III Ultralight Composite ZEU-4X Zeus X[98]
Extralight Fusion Engine
Pitban 320 XL Mongoose II[96]
Extra-Extralight Engine
Defiance 400 XXL ZEU-4X Zeus X[98]
Armor (BattleMechs & Combat Vehicles)
Starshield Mongoose II[96]
Reactive Armor
Durallex Shockwave Reactive with CASE II ZEU-4X Zeus X[98]
Communications System
Nashan Comm-i U-284 Mongoose II[96]
TharHes Calliope ZE-5A2 ZEU-4X Zeus X[98]
Targeting-Tracking System
Nashan Trac V-102 w/Beagle Active Probe Mongoose II[96]
TharHes Ares-X9-B ZEU-4X Zeus X[98]
Medium X-Pulse Laser
Defiance X5M ZEU-4X Zeus X[98]
ER Large Laser
Defiance Model 6 ZEU-4X Zeus X[98]
Diverse Optics Sunbeam Mongoose II[96]
Light Gauss Rifle
Corean ZEU-4X Zeus X[98]
Doombud ZEU-4X Zeus X[98]


  • Field Report 2765: LCAF refers to Defiance Industries as a mining facility supporting the Whitten Industries BattleMech plant.[103] This seems to conflict with other sources, which say the Lyran Commonwealth targeted Defiance Industries in Operation PROMETHEUS, the raid on Hesperus II that obtained BattleMech technology for the Commonwealth.[104]


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 House Steiner (The Lyran Commonwealth), p. 121: "Weapons Industries - [Defiance Industries]"
  2. 2.0 2.1 Handbook: House Steiner, p. 141: "Defiance Industries"
  3. Objectives: Lyran Alliance, p. 18: "Kwangjong-ni - Defiance Industries Manufacturing Annex"
  4. Handbook: House Steiner, p. 99: "House Brewer"
  5. Handbook: House Steiner, p. 58
  6. 6.0 6.1 House Steiner (The Lyran Commonwealth), p. 47
  7. House Steiner (The Lyran Commonwealth), p. 135
  8. Technical Readout: 3039, p. 228
  9. NAIS The Fourth Succession War Military Atlas Volume 1, p. 42
  10. Objectives: Lyran Alliance, p. 29: "Defiance Industries"
  11. Field Manual: Lyran Alliance, pp. 146–148
  12. Dawn of the Jihad, p. 48
  13. Jihad Hot Spots: 3070, p. 90
  14. 14.0 14.1 Masters and Minions: The StarCorps Dossiers, p. 93: Defiance Industries
  15. Jihad Hot Spots: 3072, p. 11: "Business Review: 3070"
  16. 16.00 16.01 16.02 16.03 16.04 16.05 16.06 16.07 16.08 16.09 16.10 16.11 16.12 16.13 16.14 16.15 16.16 16.17 16.18 16.19 16.20 Objectives: Lyran Alliance, p. 12
  17. 17.00 17.01 17.02 17.03 17.04 17.05 17.06 17.07 17.08 17.09 17.10 17.11 17.12 17.13 17.14 17.15 17.16 17.17 17.18 17.19 17.20 17.21 17.22 17.23 17.24 17.25 17.26 17.27 17.28 17.29 17.30 Objectives: Lyran Alliance, p. 29
  18. Jihad: Final Reckoning, p. 85: "Coventry Province"
  19. Field Manual: 3085, p. 96: "Bolan Province"
  20. Technical Readout: Prototypes, pp. 12-13 - Gray Death Strike
  21. Experimental Technical Readout: Steiner, p. 15
  22. Experimental Technical Readout: Steiner, p. 5
  23. Experimental Technical Readout: Steiner, p. 12
  24. Technical Readout: Prototypes, pp. 12, 144
  25. Field Manual: 3145, p. 121: "Bolan Province"
  26. Recognition Guide: ilClan, vol. 24, pp. 8–9
  27. Recognition Guide: ilClan, vol. 2, p. 13
  28. Recognition Guide: ilClan, vol. 14, p. 13
  29. Recognition Guide: ilClan, vol. 16, p. 5
  30. Technical Readout: 3060, p. 70
  31. Field Manual: 3145, p. 121: "State of Lyran Readiness"
  32. Dark Age: 3132-3134 INN, p. 287: "3132 Solaris VII Championships Season Review (Part 3)"
  33. 33.0 33.1 Technical Readout: 3145 Lyran Commonwealth, p. 5: "Produced Gray Death Infiltrator Suit"
  34. 34.0 34.1 34.2 34.3 34.4 34.5 34.6 34.7 34.8 Objective Raids, p. 74: "Produced Defiance Industries Components on Furillo"
  35. 35.0 35.1 35.2 35.3 35.4 35.5 35.6 35.7 35.8 Technical Readout: 3067, p. 70: "Produced Uziel Components on Furillo"
  36. 36.0 36.1 36.2 36.3 36.4 36.5 36.6 36.7 36.8 Technical Readout: Project Phoenix, p. 28: "Produced Scorpion 'Mech Components on Furillo"
  37. 37.0 37.1 37.2 37.3 37.4 37.5 37.6 37.7 37.8 Technical Readout: Prototypes, p. 112: "Produced AXM-6T Axman Components on Furillo"
  38. 38.0 38.1 Experimental Technical Readout: Steiner, p. 5
  39. 39.00 39.01 39.02 39.03 39.04 39.05 39.06 39.07 39.08 39.09 39.10 39.11 39.12 Technical Readout: 3050 Upgrade, p. 70: "Produced Axman Components on Furillo"
  40. 40.0 40.1 40.2 40.3 40.4 40.5 40.6 Technical Readout: 3075, p. 86: "Produced Defiance 'Mech Components on Furillo"
  41. Technical Readout: 3058 Upgrade, p. 13
  42. Technical Readout: 3058 Upgrade, p. 22
  43. Technical Readout: Prototypes, pp. 12–13: "Gray Death Strike"
  44. Record Sheets: 3085 Unabridged — Old is the New New, p. 22
  45. 45.0 45.1 45.2 Recognition Guide: ilClan Vol. 16, p. 5
  46. Technical Readout: Project Phoenix, p.18
  47. Technical Readout: 3085, p. 108
  48. Recognition Guide: ilClan Vol. 24, p. 13
  49. Technical Readout: 3150, p. 38
  50. 50.0 50.1 Technical Readout: 3085, p. 44
  51. Technical Readout: Vehicle Annex, p. 222
  52. Technical Readout: 3085, p. 262
  53. 53.0 53.1 53.2 53.3 53.4 53.5 53.6 53.7 53.8 Technical Readout: 3055 Upgrade, p. 14: "Produced Battle Hawk Components on Hesperus II"
  54. 54.0 54.1 54.2 54.3 54.4 54.5 54.6 54.7 Technical Readout: 3060, p. 92: "Produced Cobra 'Mech Components on Hesperus II"
  55. 55.0 55.1 55.2 55.3 55.4 55.5 55.6 55.7 Technical Readout: 3085, p. 74: "Produced Eisenfaust 'Mech Components on Hesperus II"
  56. 56.0 56.1 56.2 56.3 56.4 56.5 56.6 56.7 Technical Readout: 3085, p. 78: "Produced Ghost Components on Hesperus II"
  57. 57.00 57.01 57.02 57.03 57.04 57.05 57.06 57.07 57.08 57.09 57.10 57.11 57.12 57.13 57.14 57.15 57.16 57.17 57.18 57.19 57.20 57.21 57.22 57.23 57.24 57.25 57.26 57.27 57.28 57.29 57.30 57.31 57.32 57.33 57.34 57.35 57.36 57.37 57.38 57.39 57.40 57.41 57.42 Objective Raids, p. 76: "Produced Defiance Industries Components on Hesperus II"
  58. 58.00 58.01 58.02 58.03 58.04 58.05 58.06 58.07 58.08 58.09 58.10 Technical Readout: Project Phoenix, p. 26: "Produced Griffin 6S Components on Hesperus II"
  59. 59.0 59.1 59.2 59.3 59.4 59.5 59.6 59.7 59.8 Technical Readout: 3050 Upgrade, p. 194: "Produced Sentinel Components on Hesperus II"
  60. 60.0 60.1 60.2 60.3 60.4 60.5 60.6 60.7 Technical Readout: 3055 Upgrade, p. 70: "Produced Salamander Components on Hesperus II"
  61. 61.0 61.1 61.2 61.3 61.4 61.5 61.6 61.7 Technical Readout: 3055 Upgrade, p. 72: "Produced Gunslinger Components on Hesperus II"
  62. 62.0 62.1 62.2 62.3 62.4 62.5 62.6 62.7 62.8 Technical Readout: 3055 Upgrade, p. 80: "Produced Berserker Components on Hesperus II"
  63. 63.0 63.1 63.2 63.3 63.4 63.5 63.6 63.7 Technical Readout: 3067, p. 100: "Produced Fafnir Components on Hesperus II"
  64. 64.0 64.1 64.2 64.3 64.4 64.5 64.6 Technical Readout: 3039, p. 42: "Produced Hunter Tank Components on Hesperus II"
  65. 65.0 65.1 65.2 65.3 65.4 65.5 65.6 65.7 Technical Readout: 3145 Lyran Commonwealth, p. 18: "Manticore II Profile"
  66. 66.0 66.1 66.2 66.3 66.4 66.5 Technical Readout: 3075, p. 60: "Produced DI Morgan Tank Components on Hesperus II"
  67. 67.0 67.1 67.2 67.3 67.4 67.5 67.6 67.7 67.8 67.9 Technical Readout: 3145 Lyran Commonwealth, p. 20: "DI Schmitt Vehicle Profile"
  68. 68.00 68.01 68.02 68.03 68.04 68.05 68.06 68.07 68.08 68.09 68.10 Technical Readout: 3039, p. 80: "Produced Rommel & Patton Tank Components on Hesperus II"
  69. 69.0 69.1 69.2 69.3 69.4 69.5 Technical Readout: Prototypes, p. 56: "Produced Rommel vehicle variant"
  70. 70.0 70.1 70.2 70.3 70.4 70.5 70.6 Technical Readout: 3075, p. 48: "Produced Saxon APC Components on Hesperus II"
  71. 71.0 71.1 71.2 71.3 71.4 71.5 Technical Readout: 3067, p. 22: "Produced Fortune Tank Components on Hesperus II"
  72. 72.0 72.1 72.2 72.3 72.4 72.5 Technical Readout: 3060, p. 31: "Produced Demolisher II Components on Hesperus II"
  73. 73.0 73.1 73.2 73.3 73.4 73.5 73.6 73.7 73.8 Technical Readout: 3085, p. 50: "Produced Gürteltier Components on Hesperus II"
  74. 74.0 74.1 74.2 74.3 74.4 74.5 74.6 74.7 74.8 Technical Readout: Prototypes, p. 36: "Produced Hunter Amphibious Variant"
  75. 75.0 75.1 Experimental Technical Readout: Succession Wars, Volume 1, p. 8: "Produced Zeus 'Mech variant"
  76. Technical Readout: 3058 Upgrade, p. 27
  77. Handbook: House Steiner, p. 141: "Defiance Industries of Hesperus"
  78. Technical Readout: 3085, p. 252
  79. Technical Readout: 3058, p. 106
  80. Technical Readout: 3058 Upgrade, p. 132
  81. MUL online page for Chameleon indicates the only type produced before selling to J.B. BattleMechs in 3052 is the TRC-4B/CLN-4V
  82. Recognition Guide: ilClan, Vol. 14, p. 13
  83. Recognition Guide: ilClan, Vol. 3
  84. Technical Readout: 3025 Revised, p. 166
  85. Technical Readout: 3039, p. 166
  86. Technical Readout: Succession Wars, p. 176
  87. 87.0 87.1 87.2 87.3 Recognition Guide: ilClan, vol. 24, p. 13
  88. 88.0 88.1 88.2 88.3 88.4 88.5 Recognition Guide: ilClan, vol. 24, p. 9
  89. 89.0 89.1 Shrapnel, Issue 5 (Kindle edition): CRD-10S Crusader profile
  90. Tactical Handbook
  91. 91.0 91.1 91.2 Technical Readout: 3060, p. 114
  92. Technical Readout: 3067, p. 22
  93. Technical Readout: 3060, p. 94
  94. Experimental Technical Readout: Mercs, p. 6
  95. Recognition Guide: ilClan, vol. 14, p. 10
  96. 96.0 96.1 96.2 96.3 96.4 96.5 96.6 96.7 96.8 96.9 Technical Readout: 3075, p. 72: "Produced Mongoose II Components"
  97. 97.0 97.1 97.2 97.3 97.4 Objectives: Lyran Alliance, p. 18
  98. 98.00 98.01 98.02 98.03 98.04 98.05 98.06 98.07 98.08 98.09 98.10 Technical Readout: 3145 Lyran Commonwealth, pp. 42–43: "ZEU-X4 Zeus X"
  99. Experimental Technical Readout: Corporations, p. 3: "Experimental tech Firestarter uses FS9-H as base"
  100. Recognition Guide: ilClan, vol. 28, p.12
  101. Another Banshee rears its Death's Head (dead link)
  102. Recognition Guide: ilClan, vol. 17, p. 37: "BNC-12S Banshee"
  103. Field Report 2765: LCAF, p. 12: "Hesperus Guards"
  104. House Steiner (The Lyran Commonwealth), p. 17: "The BattleMech Era"