diff --git a/sp/src/game/client/c_baseanimating.cpp b/sp/src/game/client/c_baseanimating.cpp
index 6378e109..c8208e6a 100644
--- a/sp/src/game/client/c_baseanimating.cpp
+++ b/sp/src/game/client/c_baseanimating.cpp
@@ -294,6 +294,7 @@ END_SCRIPTDESC();
 
 ScriptHook_t	C_BaseAnimating::g_Hook_OnClientRagdoll;
 ScriptHook_t	C_BaseAnimating::g_Hook_FireEvent;
+ScriptHook_t	C_BaseAnimating::g_Hook_BuildTransformations;
 #endif
 
 BEGIN_ENT_SCRIPTDESC( C_BaseAnimating, C_BaseEntity, "Animating models client-side" )
@@ -310,6 +311,14 @@ BEGIN_ENT_SCRIPTDESC( C_BaseAnimating, C_BaseEntity, "Animating models client-si
 
 	DEFINE_SCRIPTFUNC( LookupBone, "Get the named bone id" )
 	DEFINE_SCRIPTFUNC_NAMED( ScriptGetBoneTransform, "GetBoneTransform", "Get the transform for the specified bone" )
+	DEFINE_SCRIPTFUNC_NAMED( ScriptSetBoneTransform, "SetBoneTransform", "Set the transform for the specified bone" )
+
+	DEFINE_SCRIPTFUNC_NAMED( ScriptAttachEntityToBone, "AttachEntityToBone", "Attaches this entity to the specified target and bone. Also allows for optional local position offset" )
+	DEFINE_SCRIPTFUNC_NAMED( ScriptRemoveBoneAttachment, "RemoveBoneAttachment", "Removes the specified bone attachment" )
+	//DEFINE_SCRIPTFUNC( RemoveBoneAttachments, "Removes all bone attachments" )
+	DEFINE_SCRIPTFUNC( DestroyBoneAttachments, "Destroys all bone attachments" )
+	DEFINE_SCRIPTFUNC( GetNumBoneAttachments, "Gets the number of bone attachments" )
+	DEFINE_SCRIPTFUNC_NAMED( ScriptGetBoneAttachment, "GetBoneAttachment", "Gets the specified bone attachment" )
 
 	DEFINE_SCRIPTFUNC( SetBodygroup, "Sets a bodygroup")
 	DEFINE_SCRIPTFUNC( GetBodygroup, "Gets a bodygroup" )
@@ -354,6 +363,9 @@ BEGIN_ENT_SCRIPTDESC( C_BaseAnimating, C_BaseEntity, "Animating models client-si
 		DEFINE_SCRIPTHOOK_PARAM( "event", FIELD_INTEGER )
 		DEFINE_SCRIPTHOOK_PARAM( "options", FIELD_CSTRING )
 	END_SCRIPTHOOK()
+
+	BEGIN_SCRIPTHOOK( C_BaseAnimating::g_Hook_BuildTransformations, "BuildTransformations", FIELD_VOID, "Called when building bone transformations. Allows VScript to read/write any bone with Get/SetBoneTransform." )
+	END_SCRIPTHOOK()
 #endif
 END_SCRIPTDESC();
 
@@ -1538,10 +1550,43 @@ HSCRIPT C_BaseAnimating::ScriptGetAttachmentMatrix( int iAttachment )
 
 void C_BaseAnimating::ScriptGetBoneTransform( int iBone, HSCRIPT hTransform )
 {
-	if (hTransform == NULL)
+	matrix3x4_t *matTransform = HScriptToClass<matrix3x4_t>( hTransform );
+	if (matTransform == NULL)
 		return;
 
-	GetBoneTransform( iBone, *HScriptToClass<matrix3x4_t>( hTransform ) );
+	GetBoneTransform( iBone, *matTransform );
+}
+
+void C_BaseAnimating::ScriptSetBoneTransform( int iBone, HSCRIPT hTransform )
+{
+	matrix3x4_t *matTransform = HScriptToClass<matrix3x4_t>( hTransform );
+	if (matTransform == NULL)
+		return;
+
+	MatrixCopy( *matTransform, GetBoneForWrite( iBone ) );
+}
+
+void C_BaseAnimating::ScriptAttachEntityToBone( HSCRIPT attachTarget, int boneIndexAttached, const Vector &bonePosition, const QAngle &boneAngles )
+{
+	C_BaseEntity *pTarget = ToEnt( attachTarget );
+	if (pTarget == NULL)
+		return;
+
+	AttachEntityToBone( pTarget->GetBaseAnimating(), boneIndexAttached, bonePosition, boneAngles );
+}
+
+void C_BaseAnimating::ScriptRemoveBoneAttachment( HSCRIPT boneAttachment )
+{
+	C_BaseEntity *pTarget = ToEnt( boneAttachment );
+	if (pTarget == NULL)
+		return;
+
+	RemoveBoneAttachment( pTarget->GetBaseAnimating() );
+}
+
+HSCRIPT C_BaseAnimating::ScriptGetBoneAttachment( int i )
+{
+	return ToHScript( GetBoneAttachment( i ) );
 }
 
 HSCRIPT C_BaseAnimating::ScriptBecomeRagdollOnClient()
@@ -1719,7 +1764,23 @@ void C_BaseAnimating::BuildTransformations( CStudioHdr *hdr, Vector *pos, Quater
 		}
 	}
 	
-	
+#ifdef MAPBASE_VSCRIPT
+	if (m_ScriptScope.IsInitialized() && g_Hook_BuildTransformations.CanRunInScope(m_ScriptScope))
+	{
+		int oldWritableBones = m_BoneAccessor.GetWritableBones();
+		int oldReadableBones = m_BoneAccessor.GetReadableBones();
+		m_BoneAccessor.SetWritableBones( BONE_USED_BY_ANYTHING );
+		m_BoneAccessor.SetReadableBones( BONE_USED_BY_ANYTHING );
+
+		// No parameters
+		//ScriptVariant_t args[] = {};
+		//ScriptVariant_t returnValue;
+		g_Hook_BuildTransformations.Call( m_ScriptScope, NULL, NULL /*&returnValue, args*/ );
+
+		m_BoneAccessor.SetWritableBones( oldWritableBones );
+		m_BoneAccessor.SetReadableBones( oldReadableBones );
+	}
+#endif
 }
 
 //-----------------------------------------------------------------------------
diff --git a/sp/src/game/client/c_baseanimating.h b/sp/src/game/client/c_baseanimating.h
index 53372e8d..30b69ea7 100644
--- a/sp/src/game/client/c_baseanimating.h
+++ b/sp/src/game/client/c_baseanimating.h
@@ -468,6 +468,11 @@ public:
 	HSCRIPT ScriptGetAttachmentMatrix(int iAttachment);
 
 	void	ScriptGetBoneTransform( int iBone, HSCRIPT hTransform );
+	void	ScriptSetBoneTransform( int iBone, HSCRIPT hTransform );
+
+	void		ScriptAttachEntityToBone( HSCRIPT attachTarget, int boneIndexAttached, const Vector &bonePosition, const QAngle &boneAngles );
+	void		ScriptRemoveBoneAttachment( HSCRIPT boneAttachment );
+	HSCRIPT		ScriptGetBoneAttachment( int i );
 
 	int		ScriptGetSequenceActivity( int iSequence ) { return GetSequenceActivity( iSequence ); }
 	float	ScriptGetSequenceMoveDist( int iSequence ) { return GetSequenceMoveDist( GetModelPtr(), iSequence ); }
@@ -486,6 +491,7 @@ public:
 
 	static ScriptHook_t	g_Hook_OnClientRagdoll;
 	static ScriptHook_t	g_Hook_FireEvent;
+	static ScriptHook_t	g_Hook_BuildTransformations;
 
 	float							ScriptGetPoseParameter(const char* szName);
 #endif