TRIAGE: RETHINKING MASCAL: THE OPERATIONAL SHIFT TO TWO-PASS TRIAGE From Tag-Based Theory to Battlefield Reality (TCCC 2026) DrRamonReyesMD ⚕️

 

🔴 What is MASCAL? (Operational Mnemonic)

MASCAL = Mass Casualty Event
👉 A situation where the number of casualties overwhelms available resources

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🧠 Tactical Mnemonic (Field-Ready)

🔴 MASCAL

M – Massive patients
👉 Multiple casualties at the same time

A – Austere environment
👉 Hostile / resource-limited setting

S – Scarce resources
👉 Not enough personnel, equipment, or time

C – Chaos
👉 Noise, confusion, stress, ongoing threat

A – Action first
👉 Treat first — don’t overthink

L – Life-saving priorities
👉 Focus on what kills first (MARCH)

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⚠️ Clinical Translation

MASCAL is not about numbers — it’s about imbalance

Examples:

• 5 patients + 1 medic → MASCAL
• 20 patients + 20 medics → NOT MASCAL

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🪖 Field Reality

MASCAL means:

• You cannot treat everyone at once
• You cannot be perfect
• You must prioritize under pressure

👉 And accept:

Not everyone can be saved

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🔥 Core Rule (TCCC / TECC)

“Do the most for the most.”

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🧠 Link to Two-Pass Triage

MASCAL forces a shift:

• ❌ Slow triage → fails
• ✅ Rapid intervention → saves lives

👉 Therefore: Treat first. Triage later.

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⚕️ 

🔴 RETHINKING MASCAL: THE OPERATIONAL SHIFT TO TWO-PASS TRIAGE

From Tag-Based Theory to Battlefield Reality (TCCC 2026)

DrRamonReyesMD ⚕️

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ABSTRACT

Mass casualty (MASCAL) management in tactical and austere environments has undergone a doctrinal evolution driven by real-world operational failure of traditional systems. Data suggest that in up to 93% of real-world MASCAL events, formal color-coded triage tags are not used, reflecting a gap between doctrine and battlefield reality.

The Committee on Tactical Combat Casualty Care (CoTCCC) and recent operational analyses published via and support a transition toward a principles-based, two-pass triage system, prioritizing speed, survivability, and cognitive simplicity under fire.

This article provides a high-level doctrinal, physiological, and operational analysis of this transition, with direct applicability to TCCC, TECC, and civilian high-threat MCI environments.

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1. THE PROBLEM: WHEN DOCTRINE FAILS UNDER FIRE

Traditional triage systems (START, SALT, NATO color-tag systems) assume:

• Controlled environments
• Adequate personnel
• Sufficient time
• Availability of triage tags and documentation

👉 These assumptions collapse immediately in:

• Active combat (CUF phase)
• High-threat civilian events (TECC)
• Resource-denied environments (PFC / LSCO)

Operational Reality

• Chaos dominates
• Cognitive overload is maximal
• Documentation becomes secondary
• Speed = survival

📌 Key finding:

Formal triage tagging is often abandoned in real MASCAL scenarios

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2. WHY COLOR-CODED TRIAGE FAILS IN TACTICAL SETTINGS

2.1 Time Cost vs Survival Benefit

Applying tags requires:

• Time
• Dexterity
• Environmental stability

👉 None are guaranteed under fire

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2.2 Cognitive Overload

Operators must already manage:

• Threat assessment
• Hemorrhage control
• Movement to cover
• Communication

Adding complex triage schemas: 👉 Degrades performance

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2.3 Equipment Dependency

Tags:

• Get lost
• Are unavailable
• Become irrelevant in dynamic evacuation

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2.4 Lack of Tactical Integration

Traditional triage does not align with:

• MARCH algorithm
• CUF priorities
• Tactical movement constraints

👉 Result: Doctrinal mismatch

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3. THE TWO-PASS TRIAGE MODEL (CoTCCC-ENDORSED SHIFT)

CORE PRINCIPLE:

“Do the most for the most — FAST, SIMPLE, REPEATABLE.”

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🔵 PASS 1 — RAPID LIFE-SAVING INTERVENTION

Objective:

Immediate identification and correction of preventable causes of death

Time per casualty:

👉 Seconds, not minutes

Interventions:

• Massive hemorrhage control
  • Tourniquet (TQ)
  • Junctional control
• Airway positioning
• Rapid extraction from threat

Decision Logic:

• Can walk? → Self-evacuate
• Not breathing → reposition airway
• Massive bleeding → stop it immediately

👉 No tagging
👉 No documentation
👉 Only action

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🔴 PASS 2 — REASSESSMENT AND PRIORITIZATION

Performed once:

• Scene is safer
• Resources are available
• Evacuation begins

Objectives:

• Re-evaluate casualties
• Identify priority for evacuation
• Apply structured categorization (if feasible)

Categories (functional, not tag-dependent):

• Immediate
• Delayed
• Expectant
• Minimal

👉 Tags may be used only if operationally viable

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4. PHYSIOLOGICAL FOUNDATION

The two-pass model aligns with preventable death physiology:

Leading causes of preventable death:

1. Hemorrhage
2. Airway obstruction
3. Tension pneumothorax

👉 PASS 1 directly targets these

Key concept:

Triage without intervention is meaningless in TCCC

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5. OPERATIONAL ADVANTAGES

5.1 Speed

• More casualties reached in less time

5.2 Simplicity

• Reduced cognitive burden

5.3 Flexibility

• Works in:
  • Combat
  • Civilian terror events
  • Austere environments

5.4 Scalability

• Adaptable from 2 casualties to 200+

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6. INTEGRATION WITH TCCC PHASES

Care Under Fire (CUF)

• PASS 1 only
• Focus: hemorrhage + movement

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Tactical Field Care (TFC)

• PASS 2 begins
• Reassessment + prioritization

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Tactical Evacuation Care (TACEVAC)

• Formal triage may occur
• Documentation becomes relevant

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7. COMPARISON WITH TRADITIONAL SYSTEMS

Parameter	Traditional Triage	Two-Pass Triage
Speed	Slow	Fast
Complexity	High	Low
Equipment	Required	Optional
Battlefield relevance	Limited	High
Survival impact	Variable	Direct

👉 Conclusion: Two-pass triage is operationally superior in high-threat environments

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8. LIMITATIONS AND RISKS

• Risk of under-triage if poorly trained
• Requires strong MARCH discipline
• Less documentation early phase
• Needs experienced leadership

👉 This is not “simplification for amateurs”
👉 It is optimization for professionals

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9. DOCTRINAL IMPLICATIONS (2026)

The shift reflects a broader transformation:

• From protocol-driven → to principles-driven care
• From documentation-first → to survival-first
• From static triage → to dynamic triage

This aligns with:

• CoTCCC evolution
• JTS lessons learned
• Modern LSCO doctrine
• Civilian TECC adaptation

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10. PRACTICAL TAKEAWAY

If you remember only one thing:

In MASCAL, don’t triage first — TREAT FIRST.

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📚 KEY REFERENCES (DOI + URL)

1. Butler FK et al. Tactical Combat Casualty Care Guidelines.
   Committee on TCCC (CoTCCC), DoD
   URL: https://deployedmedicine.com

2. NAEMT. Triage in Action: A Principles-Based Approach to MASCAL.
   URL: https://news.naemt.org/triage-in-action-a-principles-based-approach-to-mass-casualty-management-in-tactical-combat-casualty-care/

3. Journal of Special Operations Medicine (JSOM)
   Operational MASCAL and TCCC publications
   URL: https://www.jsomonline.org

4. Kotwal RS et al.
   Eliminating Preventable Death on the Battlefield.
   Arch Surg. 2011
   DOI: 10.1001/archsurg.2011.213
   URL: https://pubmed.ncbi.nlm.nih.gov/21422324/

5. Eastridge BJ et al.
   Death on the Battlefield (2001–2011)
   J Trauma Acute Care Surg. 2012
   DOI: 10.1097/TA.0b013e3182755dcc
   URL: https://pubmed.ncbi.nlm.nih.gov/23192066/

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⚕️ FINAL STATEMENT

This is not a trend.
This is evolution driven by blood, time, and failure analysis.

Two-pass triage is not simpler. It is smarter.

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⚕️ SIGNATURE

🔴 MASCAL TRIAGE REDEFINED (2026)

What Actually Works When Everything Is Failing

DrRamonReyesMD ⚕️

Emergency Physician | Tactical Medicine Specialist | TCCC Faculty | Austere & Remote Medicine Expert | Operational Experience in High-Threat Environments

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⚠️ STRAIGHT TALK (NO THEORY — REALITY)

In mass casualty incidents (MASCAL), especially in combat or high-threat environments:

👉 Most textbook triage systems fail.

They are:

• Too slow
• Too complex
• Too dependent on tools
• Not aligned with how humans perform under stress

📌 Field data shows:

In ~93% of real MASCAL events, formal color-coded triage tags are NOT used.

Not because people don’t know them.
👉 Because they don’t work when chaos hits.

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🧠 THE CORE SHIFT (2026 DOCTRINE)

We are moving from:

❌ Tag-based triage
➡️ To
✅ Action-based triage

This is the Two-Pass Triage System, endorsed in modern TCCC thinking and reinforced by operational evidence from:

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🔵 PASS 1 — TREAT FIRST, THINK LATER

Objective:

👉 Stop preventable death IMMEDIATELY

Time:

👉 Seconds per casualty

You are NOT triaging.

👉 You are saving lives fast

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What you actually do:

• 🩸 Massive bleeding? → Stop it (TQ immediately)
• 🫁 Not breathing? → Open airway
• 🔥 Still in danger? → Move to cover

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Simple logic:

• If they can walk → send them away
• If they are dying → act NOW
• If unsure → treat what kills first

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⚠️ Key rule:

NO tags. NO paperwork. NO delays.

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🔴 PASS 2 — NOW YOU TRIAGE

When?

• Threat is reduced
• You have space
• You have time (even limited)

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Now you:

• Reassess patients

• Prioritize evacuation

• Apply categories (if possible):

• Immediate

• Delayed

• Minimal

• Expectant

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👉 Tags?
Only if they don’t slow you down

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🧬 WHY THIS WORKS (MEDICAL REALITY)

People don’t die in MASCAL because you miscolored a tag.

They die because:

1. 🩸 Hemorrhage
2. 🫁 Airway obstruction
3. 💥 Tension pneumothorax

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👉 PASS 1 directly targets ALL THREE

That’s why this model works.

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⚠️ CRITICAL TRUTH

Triage without treatment is useless.

Traditional systems: 👉 Classify patients

Two-pass system: 👉 Saves patients first, classifies later

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🔥 OPERATIONAL ADVANTAGES

• Faster access to more casualties
• Less cognitive overload
• Works under fire
• No dependency on equipment
• Scalable to any scenario

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🪖 WHERE THIS APPLIES

This is not just military.

It applies to:

• Combat (TCCC)
• Civilian high-threat events (TECC)
• Terror incidents
• Rural / remote EMS
• Disaster medicine
• Austere environments

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🚫 WHAT WILL GET PEOPLE KILLED

• Trying to be “perfect” instead of fast
• Following rigid algorithms under fire
• Stopping to tag instead of treating
• Overthinking simple life-saving actions

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🛡️ WHAT SAVES LIVES

• Speed
• Simplicity
• Repetition
• Muscle memory
• MARCH discipline

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🧠 ONE SENTENCE TO REMEMBER

Don’t triage first. TREAT FIRST.

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📚 REFERENCES (DOI + URL)

1. NAEMT – Triage in Action (MASCAL)
https://news.naemt.org/triage-in-action-a-principles-based-approach-to-mass-casualty-management-in-tactical-combat-casualty-care/

2. JSOM – Operational TCCC & MASCAL doctrine
https://www.jsomonline.org

3. Kotwal RS et al.
Eliminating Preventable Death on the Battlefield
DOI: 10.1001/archsurg.2011.213
https://pubmed.ncbi.nlm.nih.gov/21422324/

4. Eastridge BJ et al.
Death on the Battlefield (2001–2011)
DOI: 10.1097/TA.0b013e3182755dcc
https://pubmed.ncbi.nlm.nih.gov/23192066/

5. CoTCCC Guidelines
https://deployedmedicine.com

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⚕️ FINAL WORD (FROM EXPERIENCE)

This is not academic.
This is not theoretical.

This comes from:

• Blood
• Failure analysis
• Lessons learned the hard way

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Two-pass triage is not “simpler medicine.”
It is better medicine under real conditions.

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⚕️ SIGNATURE

DrRamonReyesMD
Emergency Medicine · Tactical Medicine · TCCC Faculty
Austere Medicine · Remote Medicine · Operational Medicine

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