CBRN - The Quiver

Chemical agents, protection, self and buddy aid, and what the lifesaver and the medic do about them.

G1GuideAgents

Four chemical agents are modelled. Three of them kill.

Agent	Type	Looks like	Delivered by	Absorbed through
CS	Tear agent	Faint grey gas	CS grenades, 40mm CS shells, mortars	Lungs, eyes
Chlorine	Pulmonary agent	Bright yellow gas	Mortars, chemical IEDs	Lungs, skin
Sarin	Nerve agent	Colorless gas	Mortars, chemical IEDs	Lungs, skin
Lewisite	Blister agent	Colorless gas	Mortars, chemical IEDs	Not stated on the wiki

Agent	Immediate	Moderate	Prolonged
CS	Coughing, pain	Blindness	Difficulty breathing
Chlorine	Coughing, pain, choking	Airway inflammation, blindness	Unconsciousness, respiratory arrest, death
Sarin	Coughing, pain	Muscle spasms	Unconsciousness, airway spasm, respiratory arrest, death
Lewisite	Coughing, pain, chemical burns	Blindness	Unconsciousness, airway inflammation, respiratory arrest, shock, death

Sarin and lewisite are colorless. The first sign is coughing and pain with no visible gas.

G2GuideProtection

A gas mask stops inhalation and a CBRN suit stops skin absorption.

Filters get used up while exposed. Replace them.
Vanilla masks and suits count by default. Modded ones must be added in the ACM settings.

Vehicles:

Type	Examples	Protection
Overpressured	CBRN vehicles, some IFVs and tanks	Full. Agents cannot get in
Sealed	Some MRAPs, APCs, IFVs, tanks	Only while shut. Opening a door, turning out or dismounting ends it, and the cabin can be contaminated
Unprotected	Open-top, bikes, civilian	None

Which vehicles are sealed or overpressured is set in the ACM settings.

G3GuideSelf aid and buddy aid

Mask up, suit up, get out of the gas, then check your buddy.

Self aid:

Put on the gas mask. Put on the CBRN suit if the gas is yellow or you cannot see any.
Move out of the gas.
Swap the filter if you were in it for long.
Blinded: wash your eyes with water.
In pain: paracetamol.

Buddy aid:

Muscle spasms mean nerve agent. Only the antidote stops it, and CLS carries it.

G4GuideCLS

CLS carries the nerve agent autoinjectors and keeps the airway open until the Medic arrives.

Agent	CLS action
CS	Painkiller. Wash eyes with water
Chlorine	Painkiller. Wash eyes with water. Call the Medic if breathing worsens
Sarin	2 to 3 ATNA autoinjectors. Midazolam autoinjector for seizures. Call the Medic
Lewisite	Call the Medic. Shock needs fluids

Autoinjector	Dose	Onset	Lasts	Effect on vitals
ATNA	2 to 3 injections to start	Under 15 s	About 15 min	Raises heart rate and blood pressure
Midazolam	1 injection	Under 30 s	About 20 min	Lowers heart rate and blood pressure

ATNA and midazolam autoinjectors:

ATNA autoinjector Midazolam autoinjector

Run MARCH on every unconscious casualty once they are out of the gas.
Severe airway inflammation and airway spasm both end in respiratory arrest. Only a surgical airway fixes them.
An NPA or OPA may not go into an inflamed airway.

G5GuideMedic

The Medic gives atropine and fluids and cuts the surgical airway.

Agent	Kills by	Medic action
CS	Does not kill	Painkiller. Wash eyes
Chlorine	Airway inflammation, respiratory arrest	Painkiller. Wash eyes. Surgical airway for severe inflammation
Sarin	Airway spasm, respiratory arrest	Atropine 2 to 4 mg to start, more if needed, or 2 to 3 ATNA. Midazolam for seizures. Surgical airway for spasm
Lewisite	Airway inflammation, respiratory arrest, shock	Fluids for shock. Surgical airway for severe inflammation

Atropine and CricKit:

Atropine vial CricKit

Atropine: IV or IM, 1 mg per 1 ml vial. Onset under 5 s IV, under 15 s IM. Lasts about 15 minutes. Raises heart rate.
Airway spasm can make the BVM ineffective. Go to a surgical airway.
A surgical airway needs a CricKit.
The unit medication notes list dimercaprol 3 to 5 mg/kg IM for lewisite, never IV. The wiki overview does not list it. Confirm it exists in the current ACM build before issuing it.