Tainted Shell — warframe

The Tainted Shell mod increases the accuracy of Shotgun fire by +7% per rank while also decreasing the fire rate by -5% per rank for a maximum of increase accuracy by +77% and reduced fire rate by -55% at rank 10.

Stats

Rank	Accuracy	Fire rate	Cost
0	+7%	-5%	4
1	+14%	-10%	5
2	+21%	-15%	6
3	+28%	-20%	7
4	+35%	-25%	8
5	+42%	-30%	9
6	+49%	-35%	10
7	+56%	-40%	11
8	+63%	-45%	12
9	+70%	-50%	13
10	+77%	-55%	14

Drop Locations

Mission Drop Tables

Mission Type	Source	Rotations or Drop Table	Chance^[1]	Quantity^[2]	Avg. per roll^[3]	Star Chart Nodes
Orokin Vault	Orokin Derelict Vault	A	4.17%	1	0.0417	Any mission node on Deimos except Cambion Drift, Magnacidium, Exequias, and Hyf

Enemy Drop Tables

Enemy	Drop Table Chance^[4]	Item Chance^[5]	Chance^[6]	Expected Kills^[7]	Quantity^[8]	Avg. per roll attempt^[9]

Sourced from the official drop table repository. See Module:DropTables/data to edit on the wiki.

Notes

Adding this mod does not decrease Shotgun falloff damage.

Tips

The DPS-averse nature of this mod, the opportunity cost of slotting it, a high capacity requirement, and the fact that it's not an Exilus mod give it a fairly narrow applicability.
- The fire rate reduction can be counteracted by using Shotgun Barrage or similar, but if this was the primary reason to slot such a mod, it would cause the opportunity cost to effectively double.
- The fire rate reduction can be nullified by Semi-Shotgun Cannonade
Tigris, because of it's duplex trigger, can benefit from this mod with practically no drawback. Sancti Tigris comes with an innate polarity.
- The decrease in fire rate increases the delay before the Tigris automatically reloads after emptying it's magazine. This can be remedied by pressing the Reload button right after firing the second shot
- If Tigris is given more than 2 shots per magazine with appropriate mods, or if the weapon gets corrupted in a Void Fissure, the delay after every 2 shots is increased noticeably.
Similarly to the above, Exergis benefits from this mod, as it also has an innate polarity, and is able to ignore the fire rate penalty due to being single-shot.
- This is true despite the weapon already having the second-narrowest firing cone of all shotguns, behind Astilla, since it also has an extremely low pellet count: this mod makes it easier to hit a target with all pellets, and deal full damage to it.
It is somewhat suitable for shotguns with a higher fire rate and wide spread like Boar and Boar Prime, as it makes it possible to concentrate fire on a single target, at distances greater than point-blank range.
Due to its lack of falloff damage, this mod is useful in decreasing the spread of Drakgoon allowing it to hit distant enemies more effectively, without charging the shot.
Adding this mod to Phage will narrow the initial cone of the beams.

Trivia

This is the first mod to reduce the actual spread of gunfire, rather than simply the recoil.

Gallery

Patch History

Update 29.3 (2020-10-27)

Fixed a crash in the Simulacrum while firing a Convectrix that had max ranked Tainted Shell and Narrow Barrel Mods equipped.

Hotfix 15.7.2 (2014-12-19)

Reduced negative penalty on Tainted Shell and Critical Deceleration’s fire rate adjustment to avoid purely negative fire rates on shotgun weapons.
- (Undocumented) Reduced fire rate penalty from -66% to -55%.

Update 10.3 (2013-10-09)

Introduced along with Orokin Vaults.

Corrupted Mods
Warframe	Blind Rage • Catalyzing Shields • Fleeting Expertise • Narrow Minded • Overextended • Transient Fortitude
Rifle	Critical Delay • Depleted Reload • Heavy Caliber • Tainted Mag • Vile Acceleration • Vile Precision
Shotgun	Burdened Magazine • Critical Deceleration • Frail Momentum • Tainted Shell • Vicious Spread
Pistol	Anemic Agility • Creeping Bullseye • Hollow Point • Magnum Force • Tainted Clip
Melee	Corrupt Charge • Spoiled Strike