Revision Log:
v 1.X.X >> Build identity changes / Complete build overhaul
v X.1.X >> Central idea stays; only mod order changes / or Major guide rework
v X.X.1 >> No change in setup; Minor guide edits only
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Leaded Gas is now availible!! This setup is a Diffusion version prioritizing multishot and fire rate.
Vesper Passive -- Aiming highlights weak points indicated by crosshairs and grants +40% Critical Damage.
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Why do we use?
EMPTY SLOT is reserved for 'Leaded Gas'
Leaded Gas gives 300 elemental gas damage and 300 status chance upon a weakpoint hit for 6s.
- With LG and tox 60, we have a final 120% status chance
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Diffusion + Lethal Torrent -- Default multishot + fire rate for general gameplay
Pestilence + Ice Storm --
We use status toxin and +magazine cold to create viral. The Vesper only has an 8 rnd [Mag] which we run through very quickly with fire rate, and Ice Storm can give us 11 in the mag. this is ofc preference vs Frostbite
Primed Convulsion --
Primed electric for raw elemental damage and electric dots, can overlap with Gas for double AoE.
Crosshairs + PTC --
Galvanized Crit for headshots, scales additively with Worthy Com & passive.
- Since Vesper passive gives additive crit damage, one can optionally can trade PTC for a few options, notably Merciless Gunfight which gives punch through and crit damage useful for multi-targeting, or '[Magnetic Might]' which gives crit damage and creates magnetic as a damage type useful against overguard & shields
Steady Hands --
Combines with Deadhead for 0 recoil.
Optionally try to also run Worthy Comradery Warframe aura for an additional 75% additive weakpoint crit chance
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Gas / Electric + Deadhead
The last thing to talk about, "Why Electric and how Gas/Electric works": Gas/Electric share same code as 'Hitscan AoE', composed of 2 damage sources, direct hits (status proc) and radial hits (status effect; "Tesla Chain" , "Gas Cloud").
The difference and advantage of gas/electric compared to normal DoT’s is how gas/electric dots are calculated on the same instance as the initial hit wherever it contacts as 'radial damage', and that means placement can be controlled, (compared to normal dots which will always spawn at targets torso), and both the direct and radial damage of these status can be aimed to contact weakspots for double bonus body part multipliers.
By using BOTH gas/electric at the same time, these status dots will overlap with each other per target giving us massive grouping dps.
Unlike electric gas caps at 10x stacks per target, which is another reason why this build focuses on per shot raw damage, as we want each proc we deal from both electric and gas to deal as much damage per stack as possible
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Formula for Gas + Electric: vv

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Additional