Outbreak Perfected — Nanite Vector (Kinetic Hunter)

Centerpiece: Outbreak Perfected (Pulse Rifle · Primary · Kinetic) · Subclass: Nightstalker (Void) · Role: Self-sufficient add-clear / room-deleter Sandbox: 9.7.0 · Updated 2026-07-03

Outbreak's whole fantasy is a self-feeding plague: rapid hits and precision kills spit out SIVA nanite swarms, the swarms kill, and the catalyst makes the dead spawn more swarms. It only stops if you stop shooting — so the build's entire job is "never stop shooting." A Void Hunter wrapped in Gyrfalcon's Hauberk runs an invisibility → Devour → finisher loop that keeps you alive, keeps you killing, and keeps the nanite cascade rolling through a whole room.

The weapon

The Corruption Spreads: This weapon creates SIVA nanite swarms on rapid hits and precision kills.

Catalyst — Disease Vector: Increases nanite damage. Enemies that die with nanites attached to them generate additional nanites.

Outbreak is a 450 RPM Rapid-Fire Kinetic pulse, and the nanites are the point: land rapid hits or a precision kill and a swarm spawns that seeks and chews on nearby targets. With the catalyst, anything that dies while infested coughs up a fresh swarm — so in a pack one infested kill chains into the next, and the next. It is one of the best sustained primary add-clear tools in the game precisely because the damage keeps spreading after you have moved your reticle on. Outbreak carries no bespoke champion stun and a Rapid-Fire pulse has no intrinsic anti-champion archetype, so champion duty is farmed out to the artifact and the other two slots — Outbreak is the engine that clears everything around the champion.

Loadout

Slot	Pick	Why
Subclass	Nightstalker (Void)	The invis + Devour + Volatile toolkit that keeps you firing forever.
Super	Shadowshot: Deadfall	Tether groups + weaken when a pack or champion needs deleting; cheap, team-wide.
Class ability	Marksman's Dodge	Reloads Outbreak on demand mid-fight — keeps the nanite stream uninterrupted.
Movement	Strafe Jump	Tightest air control to reposition around a smoked pack without breaking fire.
Melee	Snare Bomb	Smoke → weaken/suppress; the debuff that arms Stylish Executioner for free invis.
Grenade	Vortex Grenade	Lingering Void AoE — pairs with Echo of Instability for Volatile and feeds finisher-fuel kills.
Aspect 1	Stylish Executioner	Any elemental-debuffed kill → Invisibility + Truesight; Outbreak kills near smoke/volatile/weaken trigger this constantly.
Aspect 2	Vanishing Step	Dodge → Invisibility; guaranteed on-demand invis to re-arm Gyrfalcon's and the Devour loop.
Fragments	Echo of Persistence · Echo of Starvation · Echo of Harvest · Echo of Instability	Longer invis/Devour; Breach/Orb → Devour; weakened kills → Orb + Breach; grenade kills → Volatile.
Exotic armour	Gyrfalcon's Hauberk (Chest)	Finisher-while-invis → fireteam reserve overshields + all-weapon damage; invis-exit → Volatile on the Void secondary.
Weapons	Void Special (Repulsor Brace / Destabilizing) + Machine Gun or Linear Fusion	The Void special soaks Gyrfalcon's Volatile and double-procs Stylish/Harvest; the heavy executes what nanites can't — bosses and the champion.

Why it works (the mechanics)

• Outbreak is a kill machine; the build is a never-die machine. Outbreak's nanite cascade only pays out while you keep landing hits and precision kills. Everything below exists to keep you alive and reloaded so the stream never breaks — survivability is the damage uptime here, not a side dish.
• The free-invis loop runs off Outbreak's own kills. Snare Bomb (or Vortex) debuffs a pack, then an Outbreak/nanite kill on a debuffed target triggers Stylish Executioner → Invisibility + Truesight. No finisher, no dodge needed — just kill something that is debuffed, which in a smoked or volatile pack is constant.
• Devour is the sustain spine. Echo of Harvest turns weakened kills (Deadfall, Snare Bomb) into an Orb and a Void Breach; Echo of Starvation converts either pickup into Devour (full heal on kill + grenade energy). So Outbreak-fed kills heal you to full on a loop while topping the grenade that re-arms Volatile, and Echo of Persistence stretches invis + Devour so the windows overlap instead of gapping.
• Gyrfalcon's is the team-buff + DR garnish. Finishing while invisible grants you and nearby allies reserve overshields (deployable on class ability) plus bonus all-weapon damage and improved class-ability regen. Vanishing Step guarantees the invis; Outbreak feeds the finisher kills. Honest caveat: Gyrfalcon's Volatile Rounds land on Void weapons only, so they buff the secondary — not Kinetic Outbreak. Outbreak's gain from Gyrfalcon's is the all-weapon finisher damage buff and the overshield layer, not Volatile.
• Volatile is the secondary's job and it loops back to invis. Echo of Instability (grenade kills) and Gyrfalcon's (invis-exit) both grant Volatile Rounds to the Void special; Volatile detonations are Void-debuff kills → more Stylish invis → more Devour. The Void half of the kit recharges the survivability the Kinetic half spends.
• The orb economy keeps Super and Devour flush. Harvest floods Orbs and Breaches off weakened kills; Starvation eats them for Devour; Deadfall returns cheaply because tethered packs die fast under nanites. You are rarely out of heal, invis, or Super for long.

Stats & mods

Weapons 200 → Health → Class. Weapons buys flat PvE damage on Outbreak's body shots and nanite chip (it scales the weapon-damage stat that 9.7.0 made matter for minors and majors); Class feeds dodge uptime to re-arm invis and reserve overshields; Health sits as the comfortable floor since Devour and overshields already carry survivability.

Archetype lean: Weapons/Class pieces (Gunner / Specialist favouring Weapons).

Mods:

• Boots: Kinetic Weapon Surge ×2 (+17% Outbreak damage at x2 Armor Charge — straight onto the centerpiece) · Orbs of Restoration (orb pickup → ability energy).
• Arms: Pulse Rifle Loader ×1–2 (snappier Outbreak reloads between dodges); swap one for Kinetic Weapon Surge if you prefer raw damage over reload speed.
• Chest (Gyrfalcon's): Arc/Solar/Void Resistance to taste under the overshield layer.
• Class item: Powerful Attraction (dodge vacuums Orbs into the Starvation loop) · Reaper (dodge → next kill spawns an extra Orb).
• Surge: Kinetic Weapon Surge — the whole kit's damage flows through Kinetic Outbreak.
• Anti-Champion: slot the artifact's anti-Barrier/Unstoppable/Overload mods — Outbreak itself carries no intrinsic stun.

Artifact — Slayer Baron Apothecary Satchel

The Void half of this kit is a Void Breach engine — Harvest spits Breaches off weakened kills, Starvation eats them for Devour — and this artifact's Void mods loop straight back into it, while Deadfall's suppress and Snare's weaken handle the champion behaviour the heavy then kills.

Picks (2/3/2):

• Tier 1: Power From Pain · The Thick Of It
• Tier 2: Void Renewal · Curative Orbs · Debilitating Wave
• Tier 3: Supernova · Old God's Rite

• Power From Pain makes weakened kills grant Devour and a Void Breach — the exact Harvest/Starvation spine, on tap.
• The Thick Of It builds Armor Charge while surrounded — the build's whole dense-room habitat, and the fuel for Kinetic Weapon Surge.
• Void Renewal has Devour-active Void kills generate Breaches whose pickup extends Devour — pure loop fuel for the secondary.
• Curative Orbs turns a shield break into an Orb, feeding Starvation and the Deadfall economy.
• Debilitating Wave makes Gyrfalcon's invis finishers emit a Void wave that Weakens — more Stylish triggers, more Breaches.
• Supernova and Old God's Rite convert Breach pickups into extra Weaken pulses and seeking Void projectiles, padding the secondary's add-clear.

Where it shines

• GMs / Master content / endgame add-clear: Outbreak + catalyst is among the best sustained primary room-clears in the game; the nanite chain thrives in dense rooms and the invis/Devour loop is the survivability GMs demand.
• Onslaught / wave defence / Nightfalls: packs are constant, so Stylish invis and the Harvest orb-flood never stall.
• Champion coverage: none intrinsic to Outbreak — a Rapid-Fire pulse has no archetype stun (weapon_facts champion = null). Coverage comes from (a) the artifact's anti-Barrier/Unstoppable/Overload mods, (b) the Void special and heavy you bring, and (c) Deadfall's suppress + Snare Bomb's weaken to neutralise champion behaviour. Outbreak clears the champion's escort; the heavy and stun source kill the champion.

Mod selection (masterworked — full allocation)

All 15 sockets used, 10 energy per masterworked piece; costs from the manifest. Core mods are the build's engine; fill mods are strong defaults — swap freely (chest resists should match the activity's damage types).