The new Skitarii Arc Rifle does wrong damage calculations inside psykhanium, but is correctly calculated in missions.
Was first observed against specials, but was further reported and confirmed to also occur on all enemy types.
Steps to Reproduce (Required):
Enter psykanium and just shoot with it and compare with it stats. It does 500+ damage on flak ranged f.x., but according to its stats, it can only do 354 (that is, 80% efficiency on damage. 350 damage flat + 4 electric)
Do also note that listed weapon damage is often in the barest vacuum. For instance, the Vraks Mk5 IAG has a listed damage of less than 100, but even with no skills tagged on an unmodded game it can do a few hundred per shot. With skills tagged, damage calculations can start to get messier, and it’s likely the Arc Rifle is probably victim to one of these two.
To answer your question though, @FatsharkLev, IIRC it is a documented phenomenon that Extended Weapon Customization triggers some old unused code that doubles weapon damage in local DT instances, probably a holdover from the days when weapon customization was a planned feature. If you could forward this to the dev team and see about it getting fixed, it’d be helpful to folk like me who don’t really want to go through the trouble of disabling a single mod every time just for testing purposes to get accurate numbers (or if we’re maniacs who want to run true solos).
I am indeed running EWC, apologies for not mentioning it. I will conduct further tests (and reply back/edit here)
Edit:
Removed all mods + turning off mod support. Bug is still present.
Test setup:
Arc rifle, 80% damage, perks got changed to not affect damage (speed + stamina)… Forgot blessings so i just waited out the effects from dum-drum / 1 shot.
Removed all skills
Results:
Game stats says 354 on flak (350+4), i do above that (somehow 402 first and 387 second)
Game stats says 340 on unarmored (334+6), i do above that (379)
Might be related to armor damage multipliers then. Could be the Arc Rifle has an above-100% damage mod on Flak/Unarmored.
Might also be related to damage variation at distance. Who knows??? Math is a mystery and precisely why I trust Path of Building with my life when playing PoE lmao
Its just weird it only happens in Psykanium (which im glad it does hah, rather in the test environment than actual gameplay). Begs the question why those 2 instances are different?
As usual, the ingame damage tables are not reliable and if you don’t know what they actually display, you end up being confused:
With an 80% Damage stat roll, the base damage of Arc Rifle’s LMB is 500 (within 16.5m, as in the video); this value is shown on the weapon card as well, under ‘Hip Fire’ (or ‘Primary Action’).
This damage value is displayed before ADMs are factored in: Arc Rifle’s ADM against Flak is 0.7; therefore: 500 * 0.7 = 350. This is the value displayed in the ingame damage table.
The ingame damage table does not account for arc lightning at all. Arc lightning is also dealt against the first target hit (i.e. the root target): With an 80% Arc Efficiency stat roll, Arc Rifle’s arc lightning deals 74 base damage against the root target and has an ADM of 0.7 against Flak, therefore: 74 * 0.7 = 51.8.
This results in 350 + 51.8 = 401.8 damage (HUD: 402) when bodyshotting the Scab Shooter, as shown in the video on the first shot; the second shot hits the upper arm which is Unarmoured and not Flak hence a different ADM applies to the shot’s part (arc lightning targets center_mass hit zone and remains the same): 500 * 0.6685 + 51.8 = 386.05 damage (HUD 387).
Amazing breakdown! However, that makes it worse then, cause that would mean in-mission damage is calculated wrong as per the initial observations that the psykanium and in-mission damage calculations are not the same.
My initial claim against specials it is true, however what tipped me off especially was observations against flak-armor (ranged) enemies, as i had build to specifically to 1-tap them. It was easily achieved in the psykanium but always had to be 2-tapped; from havoc down to damnation (albiet havoc adds extra durability)
I will try again to replicate my observations, although it will be harder this time since it has to be live with no skills and no numbers to back it up since it has to be with no mod support activated for full transparency
Good news everyone! (well not for me), i was wrong! (almost)
Upon some very slow-down review of gameplay + with damage calculations made afterwards, the arc rifle does the correct damage:
What was happening:
Since the arc rifle has RNG to its hit-locations, the arcs were hitting either the upper/lower arms or legs (of which have different damage calculations). I will break it down, cause it will reveal there is still some (extreme minor) wrong damage calculations being done.
Setup:
Arc rifle: 80% damage roll (500),
80% arc (74),
perk1: +25% against flak, perk2: +25% against unarmored
Scab-shooter, Upper arm/leg
Theory: They are unarmored (0.668 multiplier) hitzones with hitbox multiplier of 1:
base damage(500 * 1 * 0.668 * 1.25) +
arc damage(74 * 1 * 0.668 * 1.25) +
static damage(6 * 1 * 0.668 * 1.25) =
484.3 total theory damage.
Gameplay damage: 483
Discrepancy: 1.3 damage
Same is observed on the lower arm/leg, which is flak but has a multiplier of 0.5.
I apologise deeply for being wrong , and as such this post is null(ish), the arc rifle does the correct’ish damage
Soo im still not finished to this apparently . The dreg stalkers are taking too much damage on their lower legs/arms?
The damage calculations are the exact same as with the scab gunner, with the only difference of the hit multiplier being 0.5 which makes the total theory damage = 242… The Psykanium is yielding 500+
This is not a thing. Those blue numbers in the ingame damage tables are for Stagger (despite having a lightning-shaped icon next to them), they have nothing to do with damage dealt (and are also wrong in a lot of cases).
Dreg Stalkers have a 0.5 hit zone damage multiplier only on their lower arms (hands) and lower legs (feet); upper arms and upper legs do not have a hit zone damage multiplier. All their hit zones are Unarmoured.
Now:
Arc Rifle’s LMB deals 500 base damage, Unarmoured ADM is 0.6685; therefore Unarmoured bodyshot damage: 334.25 (ingame damage table: 334)
Arc Rifle’s arc lightning deals 74 base damage against root target, its ADM against Unarmoured is 0.6; it targets center_mass so no damage multiplier (it would ignore any applicable hit zone damage multiplier by default anyway); therefore: 74 * 0.6 = 44.4
(and reply back/edit here)
, and as such this post is null(ish), the arc rifle does the correct’ish damage
. The dreg stalkers are taking too much damage on their lower legs/arms?