Arm's Complete Ballistic Overhaul WIP 1.8.1 Compatible

⭐ — (7 endorsements) 📥 407 downloads 📌 v1.8.1d 📅 1/6/2026
🟡 Updated this year

By Armageddon · Gameplay

⬇ Download Mod Source: Nexus Mods ↗ 📅 Updated: 1/9/2026 📅 Created: 1/6/2026

🔍 Analysis

  • 🏆 #409 of 448 Gameplay mods in this game by downloads

📋 About This Mod

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:: INSTALLATION ::

1. Use WinRAR or similar to open the zzzARMBallisticsMod.zip file

2. Move the file inside (zzzARMBallisticsMod.pak) to the Stalker 2 ~mods folder, mine is "C:\Program Files (x86)\Steam\steamapps\common\S. T. A. L. K. E. R. 2 Heart of Chornobyl\Stalker2\Content\Paks\~mods"

3. Play the game

For all the TLDR nerds, yall better read because there is alot of info in here you need to see so calm your tits and read my novel below.

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Complete overhaul of S2 ballistics. Made to be a mix of more realistic & my preference of difficulty and time to kill on NPCs. Moved away from S2's default awkward ballistic calculations with weird scaling because of the ArmorDifferenceCoefProjectiles modifier and to a more health based system as ArmorCoef calculations creates weird issues. Also changed all weapon damage to be based on caliber instead of by gun so you can just use whatever gun/caliber you prefer vs what the devs want to be better for a sense of progression. I should probably add that yes there still is a difference in guns IE 9mm VS 5. 56 just not the different guns of the same caliber. See the attached spreadsheet images with the TTK in black underneath ammo types for kill times on Easy, Medium you do 0. 5x the damage and on Hard/Master 0. 25x.

I'm really not sure if this is something anyone other than myself is interested in or even would like but I spent the better part of a month on this bitch so I'm gonna throw it up here just because. Some of the values of this might get tweaked over time based on what I see in my playthroughs or from feedback but this is what I came up with after a bunch of testing and killing enough braincells with the math involved to probably drop my IQ a solid 20 points.

What is ArmorDifferenceCoefProjectiles you're probably asking. It with a few other modifiers changes how almost all damage in the game is calculated. Credit to multiple people on the S2 modding discords for figuring this out, the formula is essentially FinalDamage = BaseDamage ArmorDifferenceCoefProjectiles ^ (ArmorPiercing - Strike)

Because of the way it's calculated a gun (the Lavina for example with 20 base damage) would do 70 damage to a Blind Dog, around 27 damage to medium armor, around 13 damage to heavy armor and around 6 damage to Exo armor NPCs. AP ammo would change that to 97, 38, 18, 9 respectively.

I absolutely despise how that works so working within the limits of the system and how the math works I instead changed it so the guns just do their base damage to

📊 Mod Details

Game
Stalker 2 Mods
Author
Armageddon
Version
1.8.1d
Downloads
407
Endorsements
7
Category
Gameplay
Created
1/6/2026
Updated
1/9/2026

🔧 How to Install Stalker 2heartofchor Mods

Download from Nexus Mods.

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