diff --git a/cl_dll/CMakeLists.txt b/cl_dll/CMakeLists.txt
index 70c5ffc0..514e8c9a 100644
--- a/cl_dll/CMakeLists.txt
+++ b/cl_dll/CMakeLists.txt
@@ -118,6 +118,9 @@ endif()
 
 if(WIN32)
 	target_link_libraries( ${CLDLL_LIBRARY} user32.lib )
+	if (GOLDSOURCE_SUPPORT)
+		target_link_libraries( ${CLDLL_LIBRARY} winmm.lib )
+	endif()
 endif()
 
 set_target_properties (${CLDLL_LIBRARY} PROPERTIES
diff --git a/cl_dll/wscript b/cl_dll/wscript
index 1bceeb4a..ffed93db 100644
--- a/cl_dll/wscript
+++ b/cl_dll/wscript
@@ -10,12 +10,15 @@ def options(opt):
 	return
 
 def configure(conf):
-	if conf.env.GOLDSRC and conf.env.DEST_OS != 'win32':
-		conf.check_cc(lib='dl')
-
 	if conf.env.DEST_OS == 'win32':
 		conf.check_cxx(lib='user32')
 
+	if conf.env.GOLDSRC:
+		if conf.env.DEST_OS == 'win32':
+			conf.check_cxx(lib='winmm')
+		else:
+			conf.check_cc(lib='dl')
+
 def build(bld):
 	source = bld.path.parent.ant_glob([
 		'pm_shared/*.c'
@@ -89,12 +92,15 @@ def build(bld):
 		defines += ['GOLDSOURCE_SUPPORT']
 
 	libs = []
-	if bld.env.GOLDSRC and bld.env.DEST_OS != 'win32':
-		libs += ['DL']
-
 	if bld.env.DEST_OS == 'win32':
 		libs += ["USER32"]
 
+	if bld.env.GOLDSRC:
+		if bld.env.DEST_OS == 'win32':
+			libs += ["WINMM"]
+		else:
+			libs += ['DL']
+
 	if bld.env.DEST_OS not in ['android', 'dos']:
 		install_path = os.path.join(bld.env.GAMEDIR, bld.env.CLIENT_DIR)
 	else:
diff --git a/cmake/LibraryNaming.cmake b/cmake/LibraryNaming.cmake
index 22581078..f4e3d4b0 100644
--- a/cmake/LibraryNaming.cmake
+++ b/cmake/LibraryNaming.cmake
@@ -7,13 +7,13 @@ check_symbol_exists(XASH_AMD64 "build.h" XASH_AMD64)
 check_symbol_exists(XASH_ANDROID "build.h" XASH_ANDROID)
 check_symbol_exists(XASH_APPLE "build.h" XASH_APPLE)
 check_symbol_exists(XASH_ARM "build.h" XASH_ARM)
-check_symbol_exists(XASH_ARM64 "build.h" XASH_ARM64)
 check_symbol_exists(XASH_ARM_HARDFP "build.h" XASH_ARM_HARDFP)
 check_symbol_exists(XASH_ARM_SOFTFP "build.h" XASH_ARM_SOFTFP)
 check_symbol_exists(XASH_ARMv4 "build.h" XASH_ARMv4)
 check_symbol_exists(XASH_ARMv5 "build.h" XASH_ARMv5)
 check_symbol_exists(XASH_ARMv6 "build.h" XASH_ARMv6)
 check_symbol_exists(XASH_ARMv7 "build.h" XASH_ARMv7)
+check_symbol_exists(XASH_ARMv8 "build.h" XASH_ARMv8)
 check_symbol_exists(XASH_BIG_ENDIAN "build.h" XASH_BIG_ENDIAN)
 check_symbol_exists(XASH_BSD "build.h" XASH_BSD)
 check_symbol_exists(XASH_E2K "build.h" XASH_E2K)
@@ -55,11 +55,13 @@ if(XASH_AMD64)
 	set(BUILDARCH "amd64")
 elseif(XASH_X86)
 	set(BUILDARCH "")
-elseif(XASH_ARM64)
+elseif(XASH_ARM AND XASH_64BIT)
 	set(BUILDARCH "arm64")
 elseif(XASH_ARM)
 	set(BUILDARCH "armv")
-	if(XASH_ARMv7)
+	if(XASH_ARMv8)
+		set(BUILDARCH "${BUILDARCH}8_32")
+	elseif(XASH_ARMv7)
 		set(BUILDARCH "${BUILDARCH}7")
 	elseif(XASH_ARMv6)
 		set(BUILDARCH "${BUILDARCH}6")
diff --git a/dlls/basemonster.h b/dlls/basemonster.h
index 2234aaf9..a5f7f459 100644
--- a/dlls/basemonster.h
+++ b/dlls/basemonster.h
@@ -328,5 +328,7 @@ public:
 	BOOL CineCleanup();
 
 	CBaseEntity* DropItem( const char *pszItemName, const Vector &vecPos, const Vector &vecAng );// drop an item.
+
+	float m_flLastYawTime;
 };
 #endif // BASEMONSTER_H
diff --git a/dlls/game.cpp b/dlls/game.cpp
index 90388861..fd106db3 100644
--- a/dlls/game.cpp
+++ b/dlls/game.cpp
@@ -32,9 +32,10 @@ cvar_t timelimit	= { "mp_timelimit","0", FCVAR_SERVER };
 cvar_t friendlyfire	= { "mp_friendlyfire","0", FCVAR_SERVER };
 cvar_t falldamage	= { "mp_falldamage","0", FCVAR_SERVER };
 cvar_t weaponstay	= { "mp_weaponstay","0", FCVAR_SERVER };
-cvar_t selfgauss	= { "mp_selfgauss", "1", FCVAR_SERVER };
-cvar_t chargerfix	= { "mp_chargerfix", "0", FCVAR_SERVER };
-cvar_t satchelfix	= { "mp_satchelfix", "0", FCVAR_SERVER };
+cvar_t selfgauss	= { "selfgauss", "1", FCVAR_SERVER };
+cvar_t chargerfix	= { "chargerfix", "0", FCVAR_SERVER };
+cvar_t satchelfix	= { "satchelfix", "0", FCVAR_SERVER };
+cvar_t monsteryawspeedfix	= { "monsteryawspeedfix", "0", FCVAR_SERVER };
 cvar_t forcerespawn	= { "mp_forcerespawn","1", FCVAR_SERVER };
 cvar_t flashlight	= { "mp_flashlight","0", FCVAR_SERVER };
 cvar_t aimcrosshair	= { "mp_autocrosshair","1", FCVAR_SERVER };
@@ -499,6 +500,7 @@ void GameDLLInit( void )
 	CVAR_REGISTER( &selfgauss );
 	CVAR_REGISTER( &chargerfix );
 	CVAR_REGISTER( &satchelfix );
+	CVAR_REGISTER( &monsteryawspeedfix );
 	CVAR_REGISTER( &forcerespawn );
 	CVAR_REGISTER( &flashlight );
 	CVAR_REGISTER( &aimcrosshair );
diff --git a/dlls/game.h b/dlls/game.h
index 026070ff..e60cb4da 100644
--- a/dlls/game.h
+++ b/dlls/game.h
@@ -30,6 +30,7 @@ extern cvar_t weaponstay;
 extern cvar_t selfgauss;
 extern cvar_t chargerfix;
 extern cvar_t satchelfix;
+extern cvar_t monsteryawspeedfix;
 extern cvar_t forcerespawn;
 extern cvar_t flashlight;
 extern cvar_t aimcrosshair;
diff --git a/dlls/monsters.cpp b/dlls/monsters.cpp
index 57de767d..ab82cca5 100644
--- a/dlls/monsters.cpp
+++ b/dlls/monsters.cpp
@@ -2022,6 +2022,8 @@ void CBaseMonster::MonsterInit( void )
 	SetThink( &CBaseMonster::MonsterInitThink );
 	pev->nextthink = gpGlobals->time + 0.1f;
 	SetUse( &CBaseMonster::MonsterUse );
+
+	m_flLastYawTime = gpGlobals->time;
 }
 
 //=========================================================
@@ -2504,7 +2506,17 @@ float CBaseMonster::ChangeYaw( int yawSpeed )
 	ideal = pev->ideal_yaw;
 	if( current != ideal )
 	{
-		speed = (float)yawSpeed * gpGlobals->frametime * 10;
+		if( monsteryawspeedfix.value )
+		{
+			float delta;
+
+			delta = Q_min( gpGlobals->time - m_flLastYawTime, 0.25f );
+
+			speed = (float)yawSpeed * delta * 2;
+		}
+		else
+			speed = (float)yawSpeed * gpGlobals->frametime * 10;
+
 		move = ideal - current;
 
 		if( ideal > current )
@@ -2548,6 +2560,8 @@ float CBaseMonster::ChangeYaw( int yawSpeed )
 	else
 		move = 0;
 
+	m_flLastYawTime = gpGlobals->time;
+
 	return move;
 }
 
diff --git a/dlls/multiplay_gamerules.cpp b/dlls/multiplay_gamerules.cpp
index ad269f92..1bff3516 100644
--- a/dlls/multiplay_gamerules.cpp
+++ b/dlls/multiplay_gamerules.cpp
@@ -324,6 +324,12 @@ BOOL CHalfLifeMultiplay::FShouldSwitchWeapon( CBasePlayer *pPlayer, CBasePlayerI
 		return FALSE;
 	}
 
+	if( pPlayer->m_iAutoWepSwitch == 2
+	    && pPlayer->m_afButtonLast & ( IN_ATTACK | IN_ATTACK2 ) )
+	{
+		return FALSE;
+	}
+
 	if( !pPlayer->m_pActiveItem->CanHolster() )
 	{
 		// can't put away the active item.
@@ -574,7 +580,11 @@ void CHalfLifeMultiplay::PlayerSpawn( CBasePlayer *pPlayer )
 {
 	BOOL		addDefault;
 	CBaseEntity	*pWeaponEntity = NULL;
+	int 		iOldAutoWepSwitch;
+
+	iOldAutoWepSwitch = pPlayer->m_iAutoWepSwitch;
 
+	pPlayer->m_iAutoWepSwitch = 1;
 	pPlayer->pev->weapons |= ( 1 << WEAPON_SUIT );
 
 	addDefault = TRUE;
@@ -591,6 +601,8 @@ void CHalfLifeMultiplay::PlayerSpawn( CBasePlayer *pPlayer )
 		pPlayer->GiveNamedItem( "weapon_9mmhandgun" );
 		pPlayer->GiveAmmo( 68, "9mm", _9MM_MAX_CARRY );// 4 full reloads
 	}
+
+	pPlayer->m_iAutoWepSwitch = iOldAutoWepSwitch;
 }
 
 //=========================================================
diff --git a/dlls/player.cpp b/dlls/player.cpp
index cb03fa25..3b70f2c2 100644
--- a/dlls/player.cpp
+++ b/dlls/player.cpp
@@ -2777,8 +2777,6 @@ void CBasePlayer::Spawn( void )
 
 	m_flNextChatTime = gpGlobals->time;
 
-	m_iAutoWepSwitch = 1;
-
 	g_pGameRules->PlayerSpawn( this );
 }
 
diff --git a/dlls/singleplay_gamerules.cpp b/dlls/singleplay_gamerules.cpp
index 7f722e30..ba73747b 100644
--- a/dlls/singleplay_gamerules.cpp
+++ b/dlls/singleplay_gamerules.cpp
@@ -80,6 +80,12 @@ BOOL CHalfLifeRules::FShouldSwitchWeapon( CBasePlayer *pPlayer, CBasePlayerItem
 		return FALSE;
 	}
 
+	if( pPlayer->m_iAutoWepSwitch == 2
+	    && pPlayer->m_afButtonLast & ( IN_ATTACK | IN_ATTACK2 ) )
+	{
+		return FALSE;
+	}
+
 	if( !pPlayer->m_pActiveItem->CanHolster() )
 	{
 		return FALSE;
diff --git a/public/build.h b/public/build.h
index a087c22c..043a11cd 100644
--- a/public/build.h
+++ b/public/build.h
@@ -45,13 +45,13 @@ For more information, please refer to <http://unlicense.org/>
 #undef XASH_ANDROID
 #undef XASH_APPLE
 #undef XASH_ARM
-#undef XASH_ARM64
 #undef XASH_ARM_HARDFP
 #undef XASH_ARM_SOFTFP
 #undef XASH_ARMv4
 #undef XASH_ARMv5
 #undef XASH_ARMv6
 #undef XASH_ARMv7
+#undef XASH_ARMv8
 //#undef XASH_BIG_ENDIAN
 #undef XASH_BSD
 #undef XASH_E2K
@@ -169,14 +169,13 @@ For more information, please refer to <http://unlicense.org/>
 	#define XASH_AMD64 1
 #elif defined(__i386__) || defined(_X86_) || defined(_M_IX86)
 	#define XASH_X86 1
-#elif defined __aarch64__
+#elif defined __aarch64__ || defined _M_ARM64
 	#define XASH_64BIT 1
-	#define XASH_ARM64 1
+	#define XASH_ARM 8
 #elif defined __arm__ || defined _M_ARM
-	#if defined _M_ARM
-		// msvc can only armv7 ?
-		#define XASH_ARM 7
-	#elif __ARM_ARCH == 7 || __ARM_ARCH_7__
+	#if __ARM_ARCH == 8 || __ARM_ARCH_8__
+		#define XASH_ARM 8
+	#elif __ARM_ARCH == 7 || __ARM_ARCH_7__ || defined _M_ARM // msvc can only armv7 in 32 bit
 		#define XASH_ARM 7
 	#elif __ARM_ARCH == 6 || __ARM_ARCH_6__ || __ARM_ARCH_6J__
 		#define XASH_ARM 6
@@ -212,7 +211,9 @@ For more information, please refer to <http://unlicense.org/>
 	#define XASH_64BIT 1
 #endif
 
-#if XASH_ARM == 7
+#if XASH_ARM == 8
+	#define XASH_ARMv8 1
+#elif XASH_ARM == 7
 	#define XASH_ARMv7 1
 #elif XASH_ARM == 6
 	#define XASH_ARMv6 1
diff --git a/scripts/waifulib/library_naming.py b/scripts/waifulib/library_naming.py
index 827ef76c..6ee9a725 100644
--- a/scripts/waifulib/library_naming.py
+++ b/scripts/waifulib/library_naming.py
@@ -25,13 +25,13 @@ DEFINES = [
 'XASH_ANDROID',
 'XASH_APPLE',
 'XASH_ARM',
-'XASH_ARM64',
 'XASH_ARM_HARDFP',
 'XASH_ARM_SOFTFP',
 'XASH_ARMv4',
 'XASH_ARMv5',
 'XASH_ARMv6',
 'XASH_ARMv7',
+'XASH_ARMv8',
 'XASH_BIG_ENDIAN',
 'XASH_BSD',
 'XASH_E2K',
@@ -61,9 +61,9 @@ def configure(conf):
 		'fragment': CHECK_SYMBOL_EXISTS_FRAGMENT % (x, x),
 		'includes': [conf.path.find_node('public/').abspath()],
 		'define_name': x }, DEFINES )
-	
+
 	conf.multicheck(*tests, msg = '', mandatory = False, quiet = True)
-	
+
 	# engine/common/build.c
 	if conf.env.XASH_ANDROID:
 		buildos = "android"
@@ -87,11 +87,13 @@ def configure(conf):
 		buildarch = "amd64"
 	elif conf.env.XASH_X86:
 		buildarch = ""
-	elif conf.env.XASH_ARM64:
+	elif conf.env.XASH_ARM and conf.env.XASH_64BIT:
 		buildarch = "arm64"
 	elif conf.env.XASH_ARM:
 		buildarch = "armv"
-		if conf.env.XASH_ARMv7:
+		if conf.env.XASH_ARMv8:
+			buildarch += "8_32"
+		elif conf.env.XASH_ARMv7:
 			buildarch += "7"
 		elif conf.env.XASH_ARMv6:
 			buildarch += "6"
diff --git a/wscript b/wscript
index 1e842dcf..e0feb5a3 100644
--- a/wscript
+++ b/wscript
@@ -270,11 +270,11 @@ def configure(conf):
 		if conf.env.cxxshlib_PATTERN.startswith('lib'):
 			conf.env.cxxshlib_PATTERN = conf.env.cxxshlib_PATTERN[3:]
 
-	conf.define('CLIENT_WEAPONS', '0')
-	conf.define('CROWBAR_IDLE_ANIM', '0')
-	conf.define('CROWBAR_DELAY_FIX', '0')
-	conf.define('CROWBAR_FIX_RAPID_CROWBAR', '0')
-	conf.define('GAUSS_OVERCHARGE_FIX', '0')
+	conf.define('CLIENT_WEAPONS', False)
+	conf.define('CROWBAR_IDLE_ANIM', '1')
+	conf.define('CROWBAR_DELAY_FIX', False)
+	conf.define('CROWBAR_FIX_RAPID_CROWBAR', False)
+	conf.define('GAUSS_OVERCHARGE_FIX', False)
 
 	if conf.env.DEST_OS == 'android' or conf.options.ENABLE_MOD_HACKS:
 		conf.define('MOBILE_HACKS', '1')