Weapon Tune Protocol Complete Guide
Weapon Tune Materials Farming - Physical Statuses and DMG Reduction
Last updated: 2026-02-09
Complete guide to Weapon Tune Protocol Space in Arknights: Endfield with 5 stages, Physical Statuses mechanics (bonus damage + vulnerability), DMG Reduction removal through Vulnerable and Physical Statuses, team compositions, and sanity-efficient weapon tune material farming.
* TL;DR - Key Points
- * Best early materials: Stage 1-2 - 40-50 Sanity for early game weapon tune materials
- * Best material density: Stage 4-5 - 70-80 Sanity for late game tune materials
- * Lv 1-2 Mechanic: Physical Statuses deal more DMG and inflict temporary DMG debuff
- * Lv 3+ Mechanic: Enemies have DMG Reduction. Vulnerable/Physical Statuses can remove it
- * Location: The Hub - accessible mid-game (Authority Level 25+)
- * Primary rewards: Weapon tune materials
Contents
What is Weapon Tune Protocol Space?
Weapon Tune Protocol Space is a combat challenge mode located in The Hub that rewards weapon tune materials for weapon tuning. It features unique mechanics centered around Physical Statuses (Vulnerability, Stun, etc.) and enemy DMG Reduction.
Critical: Physical Operators Mandatory
Stage 3+ features enemies with DMG Reduction that can only be removed through Physical Statuses (Vulnerability most effective). Pure Arts teams will struggle significantly. Bring Physical status-based operators.
Level 1-2 Mechanic: Physical Statuses Bonus
Mechanic: Physical Statuses deal more DMG to enemies and inflict temporary debuff that causes them to suffer more DMG.
What This Means
- • Physical status effects (Vulnerability, Stun, etc.) deal increased damage
- • Successful Physical Status application increases subsequent damage
- • Vulnerability status makes enemies take more damage from all sources
How to Exploit
- • Build team with Physical status-inflicting operators
- • Prioritize applying Vulnerability and other Physical Statuses
- • Chain attacks after status application for vulnerability bonus
- • Consider operators with multiple Physical Status options
Level 3+ Mechanic: DMG Reduction Removal
Mechanic: Enemies have DMG Reduction. Vulnerable and/or Physical Statuses can remove enemies' DMG Reduction. Physical Statuses can inflict temporary debuff making enemies take more DMG.
Critical: DMG Removal Essential
Enemies in Stage 3+ have DMG Reduction that significantly reduces ALL damage. You must use Physical Statuses (Vulnerability most effective) to remove this DMG Reduction before effective damage is possible. Arts-only teams fail here.
Stage-by-Stage Walkthroughs
Stage 1 (40 Sanity) - Easy-Medium
Mechanic: Lv 1-2: Physical Statuses bonus active
Basic enemies with moderate HP. 2-3 waves.
Strategy: Build Physical status-focused team. Apply Physical Statuses. Chain attacks for vulnerability bonus.
Stage 2 (50 Sanity) - Medium
Mechanic: Lv 1-2: Physical Statuses bonus active
When to Move: When Stage 1 clears are under 2 minutes and status application consistent.
Stage 3 (60 Sanity) - Medium-Hard
Mechanic: Lv 3+: DMG Reduction requires removal via Physical Statuses
High HP enemies with DMG Reduction. 3 waves.
Strategy: Physical operators mandatory. Remove DMG Reduction before dealing damage. Vulnerability most effective for DMG Removal.
Stage 4 (70 Sanity) - Hard
Mechanic: Lv 3+: DMG Removal active and stronger
Recommended: Operators Level 40+, E1 promoted team
Stage 5 (80 Sanity) - Very Hard
Mechanic: Lv 3+: DMG Removal at maximum
Recommended: Operators Level 60+, E2-E3 promoted team
Team Composition Guide
| Slot | Role | Recommended |
|---|---|---|
| 1 | Main DPS | Physical operators with status effects |
| 2 | Status Specialist | Vulnerability/Physical status specialists |
| 3 | Support | Healer or buffer operator |
| 4 | Tank/Support | High DEF/HP or additional Physical |
Critical: Physical Mandatory for Stage 3+
The DMG Reduction mechanic demands Physical-based teams. Arts-only teams fail at Stage 3+. Build around operators with high Physical status frequency and Vulnerability application capabilities.
When to Farm Weapon Tune
| Authority Level | Recommended Stage | Runs Per Day |
|---|---|---|
| 25-30 | Stage 1 | 2-3 |
| 30-40 | Stage 2 | 2-2 |
| 40-50 | Stage 3-4 | 1-2 |
| 50+ | Stage 4-5 | 1-2 |
Common Mistakes & How to Avoid Them
1. Not using Physical operators
Problem: Bringing Arts team to Protocol Space with DMG Reduction. Fix: Physical operators mandatory for Stage 3+. Arts damage ineffective against DMG-Reduced enemies.
2. Ignoring DMG Reduction
Problem: Attacking without removing DMG Reduction first. Fix: Use Physical Statuses (Vulnerability) to remove DMG Reduction before dealing damage. Essential for Stage 3+.
Quick Reference Checklist
Frequently Asked Questions
What are the key mechanics in Weapon Tune Protocol?
Level 1-2: Physical Statuses deal more damage and inflict vulnerability debuff. Level 3+: Enemies have DMG Reduction. Vulnerable and Physical Statuses can remove DMG Reduction.
Do I need Physical operators for Weapon Tune Protocol?
Absolutely. Stage 3+ features enemies with DMG Reduction that can only be removed through Physical Statuses (Vulnerability most effective). Arts-only teams will struggle significantly at higher stages.
When should I start farming Weapon Tune Protocol?
Start around Authority Level 25+ with Stage 1-2. Progress to Stage 3+ when you have Physical status-based operators and reach Authority Level 35+.
What rewards do Weapon Tune Protocol stages provide?
Stages reward Weapon Tune materials for weapon tuning and enhancement. Higher stages provide better material density and higher-tier materials but require stronger teams.
How do I remove DMG Reduction in Stage 3+?
Use Physical Statuses (especially Vulnerability) to remove enemies' DMG Reduction. Vulnerability is most effective for DMG Removal and also increases damage after removal.