From 189891105137eee3df0e728215f7284b0d1babdd Mon Sep 17 00:00:00 2001
From: Wikot235 <149392035+Wikot235@users.noreply.github.com>
Date: Sat, 17 May 2025 16:04:32 +0200
Subject: [PATCH 1/2] Fixed the issue

---
 sp/src/game/server/hl2/npc_attackchopper.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/sp/src/game/server/hl2/npc_attackchopper.cpp b/sp/src/game/server/hl2/npc_attackchopper.cpp
index ac6efb1cbe7..d8f0a0f5b7f 100644
--- a/sp/src/game/server/hl2/npc_attackchopper.cpp
+++ b/sp/src/game/server/hl2/npc_attackchopper.cpp
@@ -3785,9 +3785,12 @@ void CNPC_AttackHelicopter::Event_Killed( const CTakeDamageInfo &info )
 	}
 
 	m_lifeState			= LIFE_DYING;
-
-	CSoundEnvelopeController &controller = CSoundEnvelopeController::GetController();
-	controller.SoundChangeVolume( m_pGunFiringSound, 0.0, 0.1f );
+	
+	if ( GetSleepState() == AISS_WAITING_FOR_INPUT )
+	{
+		CSoundEnvelopeController& controller = CSoundEnvelopeController::GetController();
+		controller.SoundChangeVolume( m_pGunFiringSound, 0.0, 0.1f );
+	}
 
 	if( GetCrashPoint() == NULL )
 	{

From 8acfe0c6c6fb0cc6ba9091974be54c76c4665bf4 Mon Sep 17 00:00:00 2001
From: Wikot235 <149392035+Wikot235@users.noreply.github.com>
Date: Sat, 17 May 2025 16:19:15 +0200
Subject: [PATCH 2/2] My last commit wouldn't work, so I fixed it.

---
 sp/src/game/server/hl2/npc_attackchopper.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sp/src/game/server/hl2/npc_attackchopper.cpp b/sp/src/game/server/hl2/npc_attackchopper.cpp
index d8f0a0f5b7f..e17084ae7fe 100644
--- a/sp/src/game/server/hl2/npc_attackchopper.cpp
+++ b/sp/src/game/server/hl2/npc_attackchopper.cpp
@@ -3786,7 +3786,7 @@ void CNPC_AttackHelicopter::Event_Killed( const CTakeDamageInfo &info )
 
 	m_lifeState			= LIFE_DYING;
 	
-	if ( GetSleepState() == AISS_WAITING_FOR_INPUT )
+	if ( GetSleepState() != AISS_WAITING_FOR_INPUT )
 	{
 		CSoundEnvelopeController& controller = CSoundEnvelopeController::GetController();
 		controller.SoundChangeVolume( m_pGunFiringSound, 0.0, 0.1f );