diff --git a/addons/medical_damage/functions/fnc_woundsHandler.sqf b/addons/medical_damage/functions/fnc_woundsHandler.sqf
index cf6eb118ce..9b1d01d567 100644
--- a/addons/medical_damage/functions/fnc_woundsHandler.sqf
+++ b/addons/medical_damage/functions/fnc_woundsHandler.sqf
@@ -71,12 +71,24 @@ private _bodyPartVisParams = [_unit, false, false, false, false]; // params arra
         _critialDamage = true;
     };
 #ifdef DEBUG_MODE_FULL
-    systemChat format["%1, damage: %2, peneration: %3, bleeding: %4, pain: %5", _bodyPart, round(_woundDamage * 100) / 100, _woundDamage > PENETRATION_THRESHOLD, round(_bleeding * 1000) / 1000, round(_pain * 1000) / 1000];
+    systemChat format["%1, damage: %2, peneration: %3, bleeding: %4, pain: %5", _bodyPart, _woundDamage toFixed 2, _woundDamage > PENETRATION_THRESHOLD, _bleeding toFixed 3, _pain toFixed 3];
 #endif
 
-    if (_bodyPartNToAdd == 0 && {_woundDamage > LETHAL_HEAD_DAMAGE_THRESHOLD}) then {
-        TRACE_2("FatalInjury",_unit,_woundDamage);
-        [QEGVAR(medical,FatalInjury), _unit] call CBA_fnc_localEvent;
+    // Emulate damage to vital organs
+    switch (true) do {
+        // Fatal damage to the head is guaranteed death
+        case (_bodyPartNToAdd == 0 && {_woundDamage >= HEAD_DAMAGE_THRESHOLD}): {
+            TRACE_1("lethal headshot",_woundDamage toFixed 2);
+            [QEGVAR(medical,FatalInjury), _unit] call CBA_fnc_localEvent;
+        };
+        // Fatal damage to torso has various results based on organ hit
+        case (_bodyPartNToAdd == 1 && {_woundDamage >= ORGAN_DAMAGE_THRESHOLD}): {
+            // Heart shot is lethal
+            if (random 1 < HEART_HIT_CHANCE) then {
+                TRACE_1("lethal heartshot",_woundDamage toFixed 2);
+                [QEGVAR(medical,FatalInjury), _unit] call CBA_fnc_localEvent;
+            };
+        };
     };
 
     // todo `forceWalk` based on leg damage
diff --git a/addons/medical_damage/functions/fnc_woundsHandlerSQF.sqf b/addons/medical_damage/functions/fnc_woundsHandlerSQF.sqf
index 84f4386e80..4fe030efc7 100644
--- a/addons/medical_damage/functions/fnc_woundsHandlerSQF.sqf
+++ b/addons/medical_damage/functions/fnc_woundsHandlerSQF.sqf
@@ -32,7 +32,7 @@ private _damageTypeInfo = [GVAR(allDamageTypesData) getVariable _typeOfDamage] p
 _damageTypeInfo params ["_thresholds", "_isSelectionSpecific", "_woundTypes"];
 
 // It appears we are dealing with an unknown type of damage.
-if (count _woundTypes == 0) then {
+if (_woundTypes isEqualTo []) then {
     // grabbing the configuration for unknown damage type
     _damageTypeInfo = [GVAR(allDamageTypesData) getVariable "unknown"] param [0, [[], false, []]];
     _woundTypes = _damageTypeInfo select 2;
@@ -121,12 +121,24 @@ private _woundsCreated = [];
                 _critialDamage = true;
             };
 #ifdef DEBUG_MODE_FULL
-            systemChat format["%1, damage: %2, peneration: %3, bleeding: %4, pain: %5", _bodyPart, round(_woundDamage * 100) / 100, _woundDamage > PENETRATION_THRESHOLD, round(_bleeding * 1000) / 1000, round(_pain * 1000) / 1000];
+            systemChat format["%1, damage: %2, peneration: %3, bleeding: %4, pain: %5", _bodyPart, _woundDamage toFixed 2, _woundDamage > PENETRATION_THRESHOLD, _bleeding toFixed 3, _pain toFixed 3];
 #endif
 
-            if (_bodyPartNToAdd == 0 && {_woundDamage > LETHAL_HEAD_DAMAGE_THRESHOLD}) then {
-                TRACE_2("FatalInjury",_unit,_woundDamage);
-                [QEGVAR(medical,FatalInjury), _unit] call CBA_fnc_localEvent;
+            // Emulate damage to vital organs
+            switch (true) do {
+                // Fatal damage to the head is guaranteed death
+                case (_bodyPartNToAdd == 0 && {_woundDamage >= HEAD_DAMAGE_THRESHOLD}): {
+                    TRACE_1("lethal headshot",_woundDamage toFixed 2);
+                    [QEGVAR(medical,FatalInjury), _unit] call CBA_fnc_localEvent;
+                };
+                // Fatal damage to torso has various results based on organ hit
+                case (_bodyPartNToAdd == 1 && {_woundDamage >= ORGAN_DAMAGE_THRESHOLD}): {
+                    // Heart shot is lethal
+                    if (random 1 < HEART_HIT_CHANCE) then {
+                        TRACE_1("lethal heartshot",_woundDamage toFixed 2);
+                        [QEGVAR(medical,FatalInjury), _unit] call CBA_fnc_localEvent;
+                    };
+                };
             };
 
             // todo `forceWalk` based on leg damage
diff --git a/addons/medical_engine/script_macros_medical.hpp b/addons/medical_engine/script_macros_medical.hpp
index c232531e7d..bc2c60830e 100644
--- a/addons/medical_engine/script_macros_medical.hpp
+++ b/addons/medical_engine/script_macros_medical.hpp
@@ -3,6 +3,14 @@
 #define ALL_SELECTIONS ["head", "body", "hand_l", "hand_r", "leg_l", "leg_r"]
 #define ALL_HITPOINTS ["HitHead", "HitBody", "HitLeftArm", "HitRightArm", "HitLeftLeg", "HitRightLeg"]
 
+// Damage threshold above which fatal organ damage can occur
+#define HEAD_DAMAGE_THRESHOLD 1
+#define ORGAN_DAMAGE_THRESHOLD 0.6
+
+// Chance to hit heart based on ratio of 70kg (approx. 70L) body to 70mL stroke volume of heart
+// Assuming torso is 50% of the body volume (35L)
+#define HEART_HIT_CHANCE 0.05
+
 #define MEDICAL_ACTION_DISTANCE 1.75
 
 // scale received pain to 0-2 level to select type of scream
@@ -53,8 +61,6 @@
 // Chance to wake up when vitals are stable (checked once every SPONTANEOUS_WAKE_UP_INTERVAL seconds)
 #define SPONTANEOUS_WAKE_UP_INTERVAL 15
 
-#define LETHAL_HEAD_DAMAGE_THRESHOLD 1.0
-
 // Minimum leg damage required for limping
 #define LIMPING_DAMAGE_THRESHOLD 0.30