Since the original crit damage guide for TPS is pretty old and is missing some information I figured I’d make a new one. Some of the work comes from the people who made the original guides (Sljm, Loot turtle, DeputyChuck, Derch, Exotek, DSs and Kringled). The BL2 version of this guide as well as the old TPS guide made by @DeputyChuck can be found below.
Critical Hit Modifier Types
There are 4 different crit modifiers, refered to as Type A, Type B,
Type C and Type D.
Type A - This one is the most common crit type for weapons and all skills or equipment have this type
Type B - This one is a lot rarer and mostly found in Jakobs weapons, it is multiplicative to Type A
Type C - This one has a negative impact on your damage output as it divides your damage numbers, in TPS it is only found in non-Jakobs assault rifles
Type D - This one is not affected by any other crit type and is added on top of everything else (so far this type has not been found in TPS yet)
Damage Calculation
Crit Damage = Damage * 2 * (1 + Type A %) * (1 + Type B %) / (1 + Type C %) + (Damage * 2 * Type D %)
Item Card Values
Description cards of guns often provide incorrect or no information about their crit modifiers. Generally if a gun type has a crit modifier by default (like all sniper rifles for example) the item card will list no crit damage, unless that stat is modified by anything (like a sniper rifle crit accessory). If a gun has two different crit modifiers the value on the card will be incorrect. Also the values of certain Class Mods and Oz Kits can be off by 0.5%.
Swapping Weapons
Swapping weapons while the projectile of a gun that has a crit modifier is still in the air will result in the projectile losing the guns crit modifier and, if present, will gain the crit modifier of the gun that is swapped to.
Tombstone
Tombstone gives you a chance to score critical hits with any type of damage you deal except damage over time (including grenades, melee etc.). Crit modifiers of weapons you’re holding or skills and gear with crit damage do affect the damage of any critical hit you achieve this way, except for melee damage (so if you hold a regular sniper rifle with +100% crit damage and throw a grenade that scores a critical hit you’ll get 4 times (1 * 2 * 2) the damage).
One For Each of Ya and Funzerking
If a gun with a crit modifier is used with these skills active, the crit modifier (including part specific modifiers) will be doubled. So for example dual-wielding a regular Jakobs pistol with a Punishing Luneshine skin will result in a total of +50% and +20% crit damage (more if a Hyperion barrel is present).
Crit Bonuses
Note: Only guns that vary from their non-unique counterpart in terms of crit bonus will be listed. For example the Omni-Cannon has +100% but will not be listed because a regular Hyperion sniper already has +100% crit damage.
Basic Guns
Hyperion Laser = +50%
Sniper Rifle = +100%
Jakobs Sniper Rifle = +160%
Assault Rifle = +20%
Jakobs Assault Rifle = +15%
Jakobs Shotgun = +15%
Jakobs Pistol = +25%
Unique Guns (guaranteed gun modifiers already taken into consideration)
Fatale = +75%
Cheat Code = +75%
Longest Yard = +150%
88 Fragnum = +25%
Mining Laser = +50%
Heartbreaker = +50%
Fibber (crit variant) = +700%
Lady Fist = +800%
Chère-amie = +120%
Good Touch = +70%
Bad Touch = +70%
Fremington’s Edge = +100% or +175% (when scoped)
Hail = +200% and +20%
Striker = +50% and +15%
Wallop = +60% and +15%
T4s-R = +7.5%
Probe = +5%
Gwen’s Other Head = +37.5%
Gun Modifiers
Sniper Rifle Crit Accessory = +20%
Shotgun Crit Accessory = +50%
Pistol Hyperion Barrel = +7.5%
Hyperion Barrel on Hyperion Lasers = +50%
Hyperion Stock on Hyperion Lasers = +10%
Punishing Luneshine = +10%
Overload (Red) Glitch = +100%
Overload (Red) Glitch on Sniper Rifles and Railguns = +50%
Skills (maxed out)
Escalation = +25%
Markswoman = +30%
Warning Shot = +35% (after missing a shot with a sniper rifle)
I Never Miss = +3.5% per stack (after hitting an enemy with a sniper rifle)
Targeting Scope = +50% (after getting a kill)
Kick Him While He’s Up = +25% (after getting a second wind)
Cold Advance = +30%
Synergy = +30% (after getting a kill)
Fuzzy Logic = +30% (after being hit)
Bona Fide Grit = +35% (after getting a kill)
All Glory to the Master = +0.4% per stack (master) and +0.2% per stack (servant) (after killing an enemy that has been shot by your servant while having Valet stacks)
Company Man = +10% per Hyperion item equipped
Gear (max stats at lvl 70)
Blademaster = +43%
Howitzer = +43%
Crapshooter = +48.5%
CEO = +24% (team bonus)
High Definition = +43%
Sport Hunter = +43%
Celestial Doppelganger = +48.5%
Celestial Fragtrap = +55%
Celestial Baroness = +48.5%
Precision Strike Oz Kit = +73.5% (while airborne)
Duality Oz Kit = +58.5% (while in a vacuum)
Other
Cryo Status Effect = +200% for every target currently frozen in the game
Badass Rank Bonus = +X%
Bonuses that activate after scoring a critical hit
Skills
Culling the Herd = Provides gun damage
Silver Lining = Adds a bullet to your magazine after a kill (doesn’t work with launchers)
Magic Bullet = Provides health regeneration, heals allies and revives them (only works with sniper rifles)
I Never Miss = Provides 2 stacks at once (only works with sniper rifles)
Custom Loads = Provides extra nova damage (only works with sniper rifles)
Escalation = Increases cooldown rate of Wolf & Saint (has a cooldown)
Cold Advance = Increases duration of Cold as Ice (has diminishing returns)
Hot Lead = Provides extra fire damage (only works with weapons that deal non-elemental damage)
Guns
Plunkett = Consumes ammo from ammo pool instead of the magazine
Let me know if I missed anything and feel free to test things yourself and correct me if something is wrong. I did test weapons like the Logan’s Gun, Cannon etc. that usually can’t score crits without Tombstone and the Logan’s Gun didn’t have any crit bonus, while the Cannon had its default Jakobs AR bonus.
Video Version of the Guide
Related Links
Chuck’s BL2 Crit Guide
Chuck’s TPS Crit Guide
Derch’s Critical Hit Video