Combined Arms Integration Project (CAIP)
⚪ Last updated 2022⚠️ Install Order · 4 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 0.5% endorsement rate
- 🏆 #239 of 412 Weapons mods in this game by downloads
📋 About This Mod
What Is This Mod?
Combined Arms Integration Project (CAIP) incorporates all 17 weapons from Combined Arms and its Expansion Pack into the base game with a comprehensive series of edits intended to deliver a streamlined and balanced gameplay experience. CAIP is the spiritual successor to DankRafft's Weapon Pack Integration Project (WPIP), which is no longer available as Dank decided to stop working on it. WPIP included NovaFinch's Combined Arms as well as Russian Assault Pack, but for CAIP I decided to focus only on integrating weapons from the Combined Arms content. Full credit goes to Dank for originally creating WPIP and giving me permission to revise, re-package, and re-release the project in this form.
What Exactly Does This Mod Change?
1. Removes all weapon recipes from the Chem workbench. I removed recipes for both the free "cheat" versions as well as the "preset" versions that cost resources. If you want the weapons, you're going to need to level up and earn them yourself!
2. Removes all placed instances of Combined Arms weapons and ammunition in the world. No more immediately farming end-game weapons from specific locations--you'll need to level up to get the weapons!
3. Disables scripted leveled list injection in favor of a curated selection of manual leveled list edits. Various factions use some or all of the Combined Arms weapons, but I didn't distribute the weapons to Super Mutants, which cannot use modded weapons without certain animations.
4. Adds dozens of attachment collections (called "mod collections" in the Creation Kit) for increased weapon spawn variety. Many weapons only spawned in 1 configuration, so now you'll see them in lots of varieties with more powerful attachments showing up as your player character's level progresses.
5. Adjusts weapons' base damage stats where needed to balance all 17 weapons against each other and comparable base game ballistic weapons. I lean heavily into FO4's leveled world design and have also customized the progression curve for obtaining and upgrading all 17 weapons.
6. Provides a version for playing only with base game ammo and a separate version for playing with the custom calibers. The "Standard Edition" of CAIP provides a more straightforward approach to gameplay by configuring all weapons to only use base game ammo and removing caliber conversions (i.e., each weapon is associated with one caliber). The "Armament Edition" requires Armament and allows for converting weapons to different calibers as defined by Combined Arms (not all calibers used by Combined Arms are available in Armament, but most are). The "Armamen
Integrates all 17 weapons from Combined Arms and its expansion pack into the base game, with balance adjustments, crafting recipe edits, and bug fixes. Based on Dank Rafft's Weapon Pack Integration Project, this mod is for players who want those weapons in the vanilla progression without the standalone pack's quirks.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community favorite with 1,313 endorsements and over 262k downloads — clearly a go-to for weapon integration.
- Saves you the hassle of juggling separate weapon mods by bundling 17 weapons into one cohesive pack.
- Balance and crafting tweaks mean these guns feel like they belong in the base game, not tacked on.
⚠️ Cons
- Last updated in May 2022 — might be outdated if the game has had major patches since then.
- Requires the original Combined Arms mod and its expansion pack to work, which adds extra dependency management.
For Fallout 4 players who love the Combined Arms weapon pack but want those guns integrated into the vanilla loot and crafting system. Skip if you prefer standalone weapon mods or don't want to bother with extra dependencies.
💡 Beginner Tips
- Make sure you have the original Combined Arms mod and its expansion pack installed first, or this integration won't work.
- Use a mod manager like Vortex or Mod Organizer 2 to handle load order — place CAIP after the base weapon mods.
- Check the mod's posts section on Nexus for any user-reported compatibility patches or load order advice, since the author didn't include notes.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- DeathByPewPew
- Version
- 1.2a
- Downloads
- 262,651
- Endorsements
- 1,313
- Category
- Weapons
- Created
- 2/13/2022
- Updated
- 5/30/2022
🧩 Commonly Used Together
Users add these mods to the same collections — a real compatibility signal, not an AI guess.
🔧 How to Install Fallout 4 Mods
Download from Nexus.
📖 Full step-by-step install guide for Fallout 4 →
Visit the official mod page for specific installation instructions for this mod.
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