diff --git a/r5dev/appframework/IAppSystemGroup.cpp b/r5dev/appframework/IAppSystemGroup.cpp
index d5b3e1df..5161e08a 100644
--- a/r5dev/appframework/IAppSystemGroup.cpp
+++ b/r5dev/appframework/IAppSystemGroup.cpp
@@ -25,6 +25,47 @@ CAppSystemGroup::AppSystemGroupStage_t CAppSystemGroup::GetCurrentStage() const
 	return m_nCurrentStage;
 }
 
+//-----------------------------------------------------------------------------
+// Methods to find various global singleton systems 
+//-----------------------------------------------------------------------------
+void* CAppSystemGroup::FindSystem(const char* pSystemName)
+{
+	unsigned short i = m_SystemDict.Find(pSystemName);
+	if (i != m_SystemDict.InvalidIndex())
+		return m_Systems[m_SystemDict[i]];
+
+	// If it's not an interface we know about, it could be an older
+	// version of an interface, or maybe something implemented by
+	// one of the instantiated interfaces...
+
+	// QUESTION: What order should we iterate this in?
+	// It controls who wins if multiple ones implement the same interface
+	for (i = 0; i < m_Systems.Count(); ++i)
+	{
+		void* pInterface = m_Systems[i]->QueryInterface(pSystemName);
+		if (pInterface)
+			return pInterface;
+	}
+
+	int nExternalCount = m_NonAppSystemFactories.Count();
+	for (i = 0; i < nExternalCount; ++i)
+	{
+		void* pInterface = m_NonAppSystemFactories[i](pSystemName, NULL);
+		if (pInterface)
+			return pInterface;
+	}
+
+	if (m_pParentAppSystem)
+	{
+		void* pInterface = m_pParentAppSystem->FindSystem(pSystemName);
+		if (pInterface)
+			return pInterface;
+	}
+
+	// No dice..
+	return NULL;
+}
+
 void VAppSystemGroup::Attach(void) const
 {
 	DetourAttach(&CAppSystemGroup_Destroy, &CAppSystemGroup::StaticDestroy);
diff --git a/r5dev/public/appframework/IAppSystemGroup.h b/r5dev/public/appframework/IAppSystemGroup.h
index 52b7d48a..e2c48ad5 100644
--- a/r5dev/public/appframework/IAppSystemGroup.h
+++ b/r5dev/public/appframework/IAppSystemGroup.h
@@ -3,6 +3,7 @@
 
 #include "tier1/interface.h"
 #include "tier1/utlvector.h"
+#include "tier1/utldict.h"
 #include "filesystem/filesystem.h"
 
 //-----------------------------------------------------------------------------
@@ -76,10 +77,13 @@ public:
 	// Returns the stage at which the app system group ran into an error
 	AppSystemGroupStage_t GetCurrentStage() const;
 
+	// Method to look up a particular named system...
+	void* FindSystem(const char* pInterfaceName);
+
 private:
 	struct Module_t
 	{
-		void /*CSysModule*/* m_pModule;
+		CSysModule* m_pModule;
 		CreateInterfaceFn m_Factory;
 		char* m_pModuleName;
 	};
@@ -88,7 +92,8 @@ protected:
 	CUtlVector<Module_t> m_Modules;
 	CUtlVector<IAppSystem*> m_Systems;
 	CUtlVector<CreateInterfaceFn> m_NonAppSystemFactories;
-	char m_Pad[56]; // <-- unknown
+	CUtlDict<int, unsigned short> m_SystemDict;
+	CAppSystemGroup* m_pParentAppSystem;
 	AppSystemGroupStage_t m_nCurrentStage;
 };
 static_assert(sizeof(CAppSystemGroup) == 0xA8);