diff --git a/ZSU-23/Models/Effects/muzzle.ac b/ZSU-23/Models/Effects/muzzle.ac
index 1c246a6..57ac3d9 100644
--- a/ZSU-23/Models/Effects/muzzle.ac
+++ b/ZSU-23/Models/Effects/muzzle.ac
@@ -1,5 +1,5 @@
 AC3Db
-MATERIAL "DefaultWhite" rgb 1.000 1.000 1.000  amb 1.000 1.000 1.000  emis 0.000 0.000 0.000  spec 0.500 0.500 0.500  shi 64 trans 0.000
+MATERIAL "DefaultWhite" rgb 0 0 0  amb 0 0 0  emis 0.000 0.000 0.000  spec 0.00 0.00 0.00  shi 64 trans 1.000
 OBJECT world
 name "Blender_exporter_v3.3__muzzle.ac"
 kids 1
diff --git a/ZSU-23/Models/Effects/muzzle.eff b/ZSU-23/Models/Effects/muzzle.eff
index 630592e..21fd068 100644
--- a/ZSU-23/Models/Effects/muzzle.eff
+++ b/ZSU-23/Models/Effects/muzzle.eff
@@ -3,21 +3,23 @@
     <name>muzzle-flame</name>
     <inherits-from>Effects/thrust-flame</inherits-from>
     <parameters>
-        <base_flame_b type="float">0</base_flame_b>
-        <base_flame_density type="float">0.5</base_flame_density>
-        <base_flame_g type="float">1</base_flame_g>
-        <base_flame_r type="float">1</base_flame_r>
-        <!-- <deflection_coeff type="float">0</deflection_coeff> -->
-        <flame_color_high_b type="float">0.1</flame_color_high_b>
-        <flame_color_high_g type="float">1</flame_color_high_g>
-        <flame_color_high_r type="float">1</flame_color_high_r>
-        <flame_color_low_b type="float">0</flame_color_low_b>
-        <flame_color_low_g type="float">0.55</flame_color_low_g>
-        <flame_color_low_r type="float">0.65</flame_color_low_r>
-        <flame_radius_fraction type="float">0.39</flame_radius_fraction>
-        <thrust_collimation type="float">-0.2</thrust_collimation>
-        <thrust_density type="float">0.5</thrust_density>
-        <use_noise type="int">0</use_noise>
-        <use_shocks type="int">0</use_shocks>
-    </parameters>
-</PropertyList>
+            <base_flame_b type="float">0.75</base_flame_b>
+            <base_flame_density type="float">0.5</base_flame_density>
+            <base_flame_g type="float">1</base_flame_g>
+            <base_flame_r type="float">1</base_flame_r>
+            <!-- <deflection_coeff type="float">0</deflection_coeff> -->
+            <flame_color_high_b type="float">0.5</flame_color_high_b>
+            <flame_color_high_g type="float">0.75</flame_color_high_g>
+            <flame_color_high_r type="float">1</flame_color_high_r>
+            <flame_color_low_b type="float">0.5</flame_color_low_b>
+            <flame_color_low_g type="float">0.55</flame_color_low_g>
+            <flame_color_low_r type="float">0.65</flame_color_low_r>
+            <flame_radius_fraction type="float">0.39</flame_radius_fraction>
+            <thrust_collimation type="float">-0.2</thrust_collimation>
+            <thrust_density type="float">0.4</thrust_density>
+            <use_noise type="int">1</use_noise>
+            <use_shocks type="int">0</use_shocks>
+            <noise_strength type="float">1</noise_strength>
+            <noise_scale type="float">0.7</noise_scale>
+        </parameters>
+</PropertyList>
\ No newline at end of file
diff --git a/ZSU-23/Models/Effects/muzzle.xml b/ZSU-23/Models/Effects/muzzle.xml
index 54942c5..7d1c099 100644
--- a/ZSU-23/Models/Effects/muzzle.xml
+++ b/ZSU-23/Models/Effects/muzzle.xml
@@ -4,13 +4,14 @@
     <name>flame</name>
     
     <effect>
-	<inherits-from>Aircraft/ZSU-23/Models/Effects/muzzle</inherits-from>
-	<object-name>muzzle</object-name>
+        <inherits-from>Aircraft/ZSU-23/Models/Effects/muzzle</inherits-from>
+        
+        <object-name>muzzle</object-name>
     </effect>
     
     <animation>
-	<type>noshadow</type>
-	<object-name>muzzle</object-name>
+        <type>noshadow</type>
+        <object-name>muzzle</object-name>
     </animation>
 
 <particlesystem>
@@ -96,4 +97,4 @@
  </particlesystem>
 
     
-</PropertyList>
+</PropertyList>
\ No newline at end of file
diff --git a/ZSU-23/Models/Effects/smoke.png b/ZSU-23/Models/Effects/smoke.png
index bcecbd1..658fed9 100644
Binary files a/ZSU-23/Models/Effects/smoke.png and b/ZSU-23/Models/Effects/smoke.png differ
diff --git a/ZSU-23/Models/ZSU-23-4M.xml b/ZSU-23/Models/ZSU-23-4M.xml
index 6cb2e99..fe88897 100644
--- a/ZSU-23/Models/ZSU-23-4M.xml
+++ b/ZSU-23/Models/ZSU-23-4M.xml
@@ -2,6 +2,9 @@
 <PropertyList>
     <path>Aircraft/ZSU-23/Models/zsu-23.ac</path>
 
+    <sound>
+        <path>Aircraft/ZSU-23/Sounds/sound.xml</path>
+    </sound>
     
     <!-- muzzle fire -->
     <model>
@@ -413,5 +416,7 @@
 	</offsets>
     </model>
 
+
+
 </PropertyList>
 
diff --git a/ZSU-23/Sounds/shilka.wav b/ZSU-23/Sounds/shilka.wav
new file mode 100644
index 0000000..677fdd2
Binary files /dev/null and b/ZSU-23/Sounds/shilka.wav differ
diff --git a/ZSU-23/Sounds/sound.xml b/ZSU-23/Sounds/sound.xml
index f42ec74..b8ab0e7 100644
--- a/ZSU-23/Sounds/sound.xml
+++ b/ZSU-23/Sounds/sound.xml
@@ -1,22 +1,25 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<!--
-    Copyright (c) 2015 onox
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
--->
-
 <PropertyList>
-
+    <fx>
+        <burst>
+            <name>missile</name>
+            <path>Aircraft/ZSU-23/Sounds/shilka.wav</path>
+            <mode>once</mode>
+            <condition>
+                <property>sim/multiplay/generic/int[1]</property>
+            </condition>
+            <reference-dist>50</reference-dist>
+            <max-dist>10000</max-dist>
+            <position>
+                <x> 0.01 </x>
+                <y> 0.01 </y>
+                <z> 0.01 </z>
+            </position>
+            <volume>
+                <factor>0.5</factor>
+                <max>1</max>
+            </volume>
+        </burst>
+    </fx>
 </PropertyList>