Five Earth Corps — Armor Vibes & Part Variations

Five Earth corporations share the same weapon families, frames, part sockets, and armor families (Light / Medium / Heavy). Corporation identity is visual and material — not different socket layouts. Armor has no modular parts. Weapons use volume-locked modular parts with five corp variations per part socket.

Gunfeel ownership · FS-GUN-001 / 008 / 009

• Receiver: Aim Assist baselines (Magnetism / Stickiness / Rotation / Strafing) + Fire Mode + cadence unit; also the art subclass body on the Class Frame.
• Frame archetype: cadence number, recoil pattern, Impact / Mag / Range band bias (data only — same Class Frame look).
• Class: Frame chassis look (one mesh per Class).
• Parts: never rewrite AA or cadence.
• Sniper Optics: long-range Optics do not rewrite AA (ADS / zoom / initial accuracy only).
• Band enum (Year-1): Low · Mid · Mid-High · High · Very High.
• Float maps: TBD-AA-FLOAT / TBD-IMR-FLOAT.

Art / mesh lean lock · FS-GUN-004 / 006 · lean mesh 2026-10-20

• Class = Spine: one core chassis per Class; everything attaches to the Spine.
• Frame archetype = data only: Adaptive, Aggressive, Precision, Rapid-Fire, Lightweight, High-Impact, specialties (cadence · Impact / Mag / Range · gunfeel). Does not change Spine art.
• Receiver = subclass body: one mesh per Type; seats onto Class Spine before Barrel.
• Tip-share Classes: Receiver owns length + universal Barrel tip socket.
• Gatling: three Class-scaled Receiver bodies (Rifle / Machine Gun / Heavy Gun).
• Shared kinetic Barrels: one Soft Object Path 5-pack for Rifle Auto/Pulse/Scout/SMG + Hand Cannon + Sidearm + MG (fully shrouded).
• Player / Refit word: Barrel.
• Hand Cannon + Sidearm: Underlug (visible under-barrel block) instead of Brace; no Front Grip.
• Bow: Limbs · Quiver/String · Sight · Grip · Stabilizer (not Front Grip).
• Own Barrel meshes: Shotgun / Sniper / Gatling×3 / Heavy / GL.
• Rocket: Tube + Backblast Collar (rear exhaust — not Warhead).
• Modules: Mag / Stock|Brace / Optic / Grip / Front Grip (long-gun only) / Underlug (pistols) / Bow Stabilizer — unless keyed (Sniper Optic; Coil / Rail / Emitter; Tube / Backblast Collar; Limbs / Prod; Cylinder; GL Year-1 Breech — drums later).
• Specialty Frames: share the Class Spine. Sniper reuses Rifle Spine.
• Assembly: Class Spine → Receiver → modules.

References below are inspiration only. Terra Firma art must be original — no trademarks, logos, or exact copyrighted silhouettes.

Shared Contract

• Same gun/melee frames and socket transforms across all five corps.
• Same armor family envelopes: Light, Medium, Heavy — no armor modules.
• Corp identity = materials, paneling density, decals, telemetry, part mesh finish.
• Each modular weapon part socket has five corp variations (same volume, different look).
• Part variations dial the same frame base stats (vol. 04 modular roles) — visuals only differ.
• Corporation names still TBD; vibes below are LOCKED.

Corp Armor Visual Languages (Locked)

Corp 1 (C1) — Halo-set inspired

• Working name: TBD
• Reference feel: Halo MJOLNIR / Spartan armor language (game + movies) — inspiration only.
• Read: Clean powered assault plates, heroic military silhouette, shield-tech fantasy, readable limbs, visor as identity.
• TFA translation: Polished ceramic/composite plates, HUD visor bar, restrained markings, parade-ready Light→Heavy scale.
• Light/Med/Heavy bias: Light: lean parade plates. Medium: classic assault shell. Heavy: full sealed knight MI.
• Part finish language: Parade ceramic / chrome edge / clean HUD etch

Corp 2 (C2) — Mass Effect human inspired

• Working name: TBD
• Reference feel: Mass Effect human / N7-adjacent armor language (game) — inspiration only.
• Read: Sleek ceramic special-ops, striped accent panels, slim helmet, fashion-forward military.
• TFA translation: Smooth shells, accent striping, thinner seams, soft-tech luxury under hard plates.
• Light/Med/Heavy bias: Light: slim SOF. Medium: striped operator shell. Heavy: still sleek, denser ceramics.
• Part finish language: Sleek striped ceramic / soft-tech seams / fashion SOF paint

Corp 3 (C3) — Latest Doom inspired

• Working name: TBD
• Reference feel: Doom Eternal / recent Doom Slayer armor language (game) — inspiration only.
• Read: Brutal, angular, aggressive spikes/vents, demonic-tech industrial, predator silhouette.
• TFA translation: Aggressive facet cuts, exposed heat vents, scarred plating; Heavy bias looks mean.
• Light/Med/Heavy bias: Light: angular scout. Medium: vented hunter. Heavy: predator siege plates.
• Part finish language: Scarred angular facets / heat vents / predator industrial

Corp 4 (C4) — Starship Troopers MI inspired

• Working name: TBD
• Reference feel: Starship Troopers Mobile Infantry powered armor — novel / Roughnecks / OVA jump-trooper language preferred over 1997 film light kit — inspiration only.
• Read: Classic powered infantry — bulky MI plates, jump-jet / drop-trooper fantasy, utilitarian war-economy military.
• TFA translation: Thicker joint rings, drop-harness hardware, squad numerals, matte warpaint; issued kit, not parade chrome.
• Light/Med/Heavy bias: Light: issued jump scout. Medium: standard MI. Heavy: drop-assault brick.
• Part finish language: Matte warpaint / squad stencil / issued MI hardware

Corp 5 (C5) — Starfield full armored suit inspired

• Working name: TBD
• Reference feel: Starfield full armored / explorer spacesuit language (game) — inspiration only.
• Read: Sealed multi-layer vacuum kit, life-support backpack/torso hardware, utilitarian plating over a full-body pressure suit, helmet as survival gear.
• TFA translation: Sealed undersuit + bolted plate islands, life-support humps, matte vacuum-rated materials, corp expedition stamps; Light→Heavy = more plating over the same explorer envelope.
• Light/Med/Heavy bias: Light: sealed explorer. Medium: plated expedition. Heavy: full armored vacuum siege suit.
• Part finish language: Vacuum-rated matte / sealed bolts / life-support cabling accents

Contrast Map

• C1 Halo-like — sealed heroic military plates (parade/shield mythos).
• C2 Mass Effect human — sleek special-ops ceramic fashion.
• C3 Doom-like — brutal predator facets + vents.
• C4 Starship Troopers-like — issued MI drop-trooper powered kit.
• C5 Starfield-like — full armored explorer / vacuum expeditionary suit.

Weapon Parts — Five Variations Per Socket

Every Augmented/Rare modular gun uses the same socket set for its family. For each shared socket below, loot/art can roll any of the five corp finishes. Volume bounds and which weapon variables the socket owns stay identical — corp finish changes look only.

Shared Gun Sockets — Variables + 5 Corp Looks

• Barrel
• Primary variables changed: Range; Accuracy Falloff; Projectile / Pellet Velocity; Pellet Spread (Shotgun)
• Secondary variables changed: Recoil; Barrel Jump; Handling
• Corp variants: C1–C5 finishes (Parade ceramic … Vacuum-rated matte)
• Note: Primary Range dial. Longer barrels usually trade Handling.
• Magazine / Cylinder / Tube / Drum / Box Magazine
• Primary variables changed: Magazine Size; Reload Speed
• Secondary variables changed: Handling; Reserve Ammo
• Corp variants: C1–C5 finishes (Parade ceramic … Vacuum-rated matte)
• Note: Capacity vs reload tradeoff.
• Optic / Sight
• Primary variables changed: ADS Acquisition; Zoom Band; ADS Initial Accuracy
• Secondary variables changed: Hip-Fire Effectiveness; Handling
• Corp variants: C1–C5 finishes (Parade ceramic … Vacuum-rated matte)
• Note: Does not rewrite Aim Assist baseline.
• Stock / Shoulder Brace / Brace
• Primary variables changed: Stability; Recoil Control; Barrel Sway
• Secondary variables changed: Handling; Equip Speed
• Corp variants: C1–C5 finishes (Parade ceramic … Vacuum-rated matte)
• Note: Primary Stability / kick-settling dial.
• Grip / Bipod-Grip / Grip-Brace
• Primary variables changed: Handling; Equip Speed; Reload Speed
• Secondary variables changed: Stability (minor); Hip-Fire Effectiveness
• Corp variants: C1–C5 finishes (Parade ceramic … Vacuum-rated matte)
• Note: Primary Handling dial. Bipod variants also help Stability when braced.

Family-Specific Sockets — Variables Changed

• These also ship five corp finishes. Variables below are owned by the socket.
• Bipod (MG / Heavy / Sniper)
• Primary: Stability (braced); Barrel Jump/Sway (braced)
• Secondary: Handling (undeployed); Mobility (braced)
• Note: Braced-fire Stability spike.
• Accelerator Coil / Rail (Fusion / Linear)
• Primary: Range; Bolt / Beam Velocity; Stability (during charge)
• Secondary: Handling; Impact
• Note: Charge ms stays on the Frame. Coil never writes cadence.
• Emitter Lens (Trace)
• Primary: Beam Focus (Accuracy); Range; Tick Rate Feel
• Secondary: Stability; Heat / Sustained Fire Window
• Note: Trace focus / sustain dial.
• Cell (Fusion / Linear / Trace / Glaive energy)
• Primary: Magazine Size (shots / charges); Reload / Vent Speed
• Secondary: Energy Efficiency; Reload / Vent Speed
• Note: Energy capacity dial (mag analogue).
• Tube (Rocket)
• Primary: Projectile Velocity; Range; Blast Travel Time
• Secondary: Handling; Reload Speed
• Note: Rocket flight / engagement-distance dial.
• Warhead Rack (Rocket)
• Primary: Impact / Blast Damage; Blast Radius
• Secondary: Magazine Size (rockets); Reload Speed
• Note: Payload damage / AoE dial.
• Limbs (Bow)
• Primary: Damage (draw force); Range
• Secondary: Hold Stability; Accuracy at Full Draw
• Note: Bow power dial.
• String (Bow)
• Primary: Hold Stability; Handling
• Secondary: Accuracy; Equip Speed
• Note: Draw ms stays on the Frame. String never writes cadence.
• Quiver (Bow)
• Primary: Carried Count / Magazine Size; Reload / Nock Speed
• Secondary: Handling
• Note: Ammo capacity dial for non-mag weapons.

Melee Parts — Five Variations Per Socket

Melee frames use the same volume-lock rule. Each shared socket owns an O17 frame bar plus Primary/Secondary MeleeFeel dials (gun-module rules — feel, not affixes). V1–V5 = five named Refit lean-mesh variants per socket (effect packages TBA). C1–C5 = corp finish only (same AABB). See Melee Modules — V1–V5 Stubs and 2026-11-08-melee-part-exact-variables-design.md.

• Blade / Bit / Head / Tip / Talons / Cap
• Primary variables changed: Base Damage (min–max); Attack Rating
• Secondary variables changed: Weapon Speed; Reach
• Note: Primary damage / AR dial.
• Guard / Collar / Knuckle Plate
• Primary variables changed: Block Chance / Block Rate; Defense while swinging
• Secondary variables changed: Attack Rating (minor); Hit Recovery
• Note: Defensive / control dial.
• Grip / Haft / Shaft / Grip Wrap / Brace
• Primary variables changed: Weapon Speed Modifier (WSM / IAS); Handling / Swing Recovery
• Secondary variables changed: Attack Rating (minor); Equip Speed
• Note: Primary speed / recovery dial.
• Pommel / Butt Spike / Counterweight / Butt Cap / Balance Weight
• Primary variables changed: Damage↔Speed Balance; Knockback Chance
• Secondary variables changed: Stun / Crushing Blow bias; Handling
• Note: Weight distribution dial.
• Core / Cell / Servo
• Primary variables changed: Channel Bias on Hit; Energy on Hit/Kill; Proc Chance
• Secondary variables changed: Durability / Ethereal-analogue bias
• Note: ARPG identity dial within frame bands.

Loot & Crafting Hooks

• Drops and Crafting Page can filter by corporation finish (C1–C5).
• Mixed-corp kits are allowed (e.g. C5 barrel + C1 stock) unless a seasonal rule says otherwise.
• Swapping corp finish never changes which variables a socket modifies. Finish-only Refit costs Dual Stack Cells only.
• Part variants unlock on salvage (Family × Socket × Variant) and stay owned like Frames. They are not bag tiles — they unlock on Crafting like Frames.
• Forge and Refit happen on the Crafting Page. Inspect on Character I is read-only for parts.
• Legendary / Unique / Apex remain outside this modular corp-kit system — no Refit.

Numeric part tiers and exact mesh AABB sheets ship separately. This locks the five vibes, five-variations-per-part art rule, and exact part→variable ownership into the main GDD.