diff --git a/AccuracyFix/AccuracyFix.vcxproj b/AccuracyFix/AccuracyFix.vcxproj
index f600ded..a4c4368 100644
--- a/AccuracyFix/AccuracyFix.vcxproj
+++ b/AccuracyFix/AccuracyFix.vcxproj
@@ -45,15 +45,15 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/AccuracyFix/include/cssdk/dlls/regamedll_api.h b/AccuracyFix/include/cssdk/dlls/regamedll_api.h
index 762d06d..dbf5087 100644
--- a/AccuracyFix/include/cssdk/dlls/regamedll_api.h
+++ b/AccuracyFix/include/cssdk/dlls/regamedll_api.h
@@ -622,6 +622,10 @@ typedef IHookChainRegistry<void, class CBaseEntity *, class CBasePlayer *, class
 typedef IHookChainClass<void, class CBasePlayer> IReGameHook_CBasePlayer_PlayerDeathThink;
 typedef IHookChainRegistryClass<void, class CBasePlayer> IReGameHookRegistry_CBasePlayer_PlayerDeathThink;
 
+// CBasePlayer::Observer_Think hook
+typedef IHookChainClass<void, class CBasePlayer> IReGameHook_CBasePlayer_Observer_Think;
+typedef IHookChainRegistryClass<void, class CBasePlayer> IReGameHookRegistry_CBasePlayer_Observer_Think;
+
 class IReGameHookchains {
 public:
 	virtual ~IReGameHookchains() {}
@@ -782,6 +786,8 @@ class IReGameHookchains {
 	virtual IReGameHookRegistry_CSGameRules_SendDeathMessage *CSGameRules_SendDeathMessage() = 0;
 
 	virtual IReGameHookRegistry_CBasePlayer_PlayerDeathThink *CBasePlayer_PlayerDeathThink() = 0;
+	virtual IReGameHookRegistry_CBasePlayer_Observer_Think *CBasePlayer_Observer_Think() = 0;
+	
 };
 
 struct ReGameFuncs_t {