diff --git a/r5dev/core/init.cpp b/r5dev/core/init.cpp
index eb74afeb..64f9a2d6 100644
--- a/r5dev/core/init.cpp
+++ b/r5dev/core/init.cpp
@@ -306,19 +306,19 @@ void CheckCPU() // Respawn's engine and our SDK utilize POPCNT, SSE3 and SSSE3 (
 	{
 		V_snprintf(szBuf, sizeof(szBuf), "CPU does not have %s!\n", "SSE 3");
 		MessageBoxA(NULL, szBuf, "Unsupported CPU", MB_ICONERROR | MB_OK);
-		ExitProcess(-1);
+		ExitProcess(0xFFFFFFFF);
 	}
 	if (!pi.m_bSSSE3)
 	{
 		V_snprintf(szBuf, sizeof(szBuf), "CPU does not have %s!\n", "SSSE 3 (Supplemental SSE 3 Instructions)");
 		MessageBoxA(NULL, szBuf, "Unsupported CPU", MB_ICONERROR | MB_OK);
-		ExitProcess(-1);
+		ExitProcess(0xFFFFFFFF);
 	}
 	if (!pi.m_bPOPCNT)
 	{
 		V_snprintf(szBuf, sizeof(szBuf), "CPU does not have %s!\n", "POPCNT");
 		MessageBoxA(NULL, szBuf, "Unsupported CPU", MB_ICONERROR | MB_OK);
-		ExitProcess(-1);
+		ExitProcess(0xFFFFFFFF);
 	}
 }
 
diff --git a/r5dev/engine/cmodel_bsp.cpp b/r5dev/engine/cmodel_bsp.cpp
index b13a2d81..13e4422b 100644
--- a/r5dev/engine/cmodel_bsp.cpp
+++ b/r5dev/engine/cmodel_bsp.cpp
@@ -119,7 +119,7 @@ __int64 __fastcall Mod_GetQueuedPakHandle(char* a1, char* a2, __int64 a3)
                 while ((v10[-v4] & 0xC0) == 0x80);
             }
             v11 = &v10[-v4];
-            if (v4 != ((0xE5000000 >> (((unsigned __int8)*v11 >> 3) & 0x1E)) & 3))
+            if (v4 != signed int(((0xE5000000 >> (((unsigned __int8)*v11 >> 3) & 0x1E)) & 3)))
             {
                 *v11 = 0;
                 v5 -= v4;
@@ -265,7 +265,7 @@ void Mod_ProcessPakQueue()
                     if (v13 && (unsigned int)(v13 - 13) > 1)
                         return;
                     *((_WORD*)v10 + 2) = 0;
-                    *(_DWORD*)v10 = -1;
+                    *(_DWORD*)v10 = 0xFFFFFFFF;
                 }
                 --v9;
                 v10 -= 280;
@@ -291,7 +291,7 @@ void Mod_ProcessPakQueue()
             Mod_GetQueuedPakHandle(v17, *((char**)v15 + 34), 260i64);
             if (v15[5])
                 break;
-            *(_DWORD*)v15 = -1;
+            *(_DWORD*)v15 = 0xFFFFFFFF;
         LABEL_40:
             ++v16;
             v15 += 280;
@@ -356,7 +356,7 @@ void Mod_ProcessPakQueue()
 #else
             v22 = 184i64 * (v21 & 0x1FF);
 #endif
-            if (*(_DWORD*)((char*)&*g_pLoadedPakInfo + v22) != v21 || ((*(_DWORD*)((char*)&*g_pLoadedPakInfo + v22 + 4) - 9) & 0xFFFFFFFB) != 0)
+            if (*(_DWORD*)((char*)&*g_pLoadedPakInfo + v22) != _DWORD(v21) || ((*(_DWORD*)((char*)&*g_pLoadedPakInfo + v22 + 4) - 9) & 0xFFFFFFFB) != 0)
             {
                 *byte_16709DDDF = 0;                return;
             }
diff --git a/r5dev/game/shared/ai_utility_shared.cpp b/r5dev/game/shared/ai_utility_shared.cpp
index 0bf2601c..5e619ac5 100644
--- a/r5dev/game/shared/ai_utility_shared.cpp
+++ b/r5dev/game/shared/ai_utility_shared.cpp
@@ -533,7 +533,7 @@ int CAI_Utility::GetNearestNodeToPos(const CAI_Network* pAINetwork, const Vector
         v3 = pAINetwork->m_iNumScriptNodes;
         v4 = 0i64;
         v5 = 640000.0;
-        v6 = NO_NODE;
+        v6 = unsigned int(NO_NODE);
         if (v3 >= 4)
         {
             v7 = pAINetwork->m_ScriptNode;
diff --git a/r5dev/gameui/IConsole.cpp b/r5dev/gameui/IConsole.cpp
index 35c2378e..e612fc98 100644
--- a/r5dev/gameui/IConsole.cpp
+++ b/r5dev/gameui/IConsole.cpp
@@ -384,7 +384,7 @@ void CConsole::SuggestPanel(void)
     for (size_t i = 0, ns = m_vSuggest.size(); i < ns; i++)
     {
         const CSuggest& suggest = m_vSuggest[i];
-        const bool bIsIndexActive = m_nSuggestPos == i;
+        const bool bIsIndexActive = m_nSuggestPos == ssize_t(i);
 
         ImGui::PushID(static_cast<int>(i));
 
diff --git a/r5dev/public/utility/module.cpp b/r5dev/public/utility/module.cpp
index 7814bda2..1ef232de 100644
--- a/r5dev/public/utility/module.cpp
+++ b/r5dev/public/utility/module.cpp
@@ -12,7 +12,8 @@
 // Purpose: constructor
 // Input  : *svModuleName
 //-----------------------------------------------------------------------------
-CModule::CModule(const string& svModuleName) : m_svModuleName(svModuleName)
+CModule::CModule(const string& svModuleName)
+	: m_svModuleName(svModuleName)
 {
 	m_pModuleBase = reinterpret_cast<uintptr_t>(GetModuleHandleA(svModuleName.c_str()));
 
@@ -24,7 +25,9 @@ CModule::CModule(const string& svModuleName) : m_svModuleName(svModuleName)
 // Purpose: constructor
 // Input  : nModuleBase
 //-----------------------------------------------------------------------------
-CModule::CModule(const uintptr_t nModuleBase, const string& svModuleName) : m_svModuleName(svModuleName), m_pModuleBase(nModuleBase)
+CModule::CModule(const uintptr_t nModuleBase, const string& svModuleName)
+	: m_svModuleName(svModuleName)
+	, m_pModuleBase(nModuleBase)
 {
 	Init();
 	LoadSections();
@@ -67,7 +70,7 @@ void CModule::LoadSections()
 //          *szMask - 
 // Output : CMemory
 //-----------------------------------------------------------------------------
-CMemory CModule::FindPatternSIMD(const uint8_t* szPattern, const char* szMask, const ModuleSections_t* moduleSection, const uint32_t nOccurrence) const
+CMemory CModule::FindPatternSIMD(const uint8_t* szPattern, const char* szMask, const ModuleSections_t* moduleSection, const size_t nOccurrence) const
 {
 	if (!m_ExecutableCode.IsSectionValid())
 		return CMemory();
@@ -81,7 +84,7 @@ CMemory CModule::FindPatternSIMD(const uint8_t* szPattern, const char* szMask, c
 	const uint8_t* pData = reinterpret_cast<uint8_t*>(nBase);
 	const uint8_t* pEnd = pData + nSize - nMaskLen;
 
-	int nOccurrenceCount = 0;
+	size_t nOccurrenceCount = 0;
 	int nMasks[64]; // 64*16 = enough masks for 1024 bytes.
 	const int iNumMasks = static_cast<int>(ceil(static_cast<float>(nMaskLen) / 16.f));
 
@@ -274,9 +277,9 @@ CMemory CModule::FindString(const string& svString, const ptrdiff_t nOccurrence,
 // Purpose: get address of a virtual method table by rtti type descriptor name.
 // Input  : *svTableName - 
 //			nRefIndex - 
-// Output : CMemory
+// Output : address of virtual method table, null if not found.
 //-----------------------------------------------------------------------------
-CMemory CModule::GetVirtualMethodTable(const string& svTableName, const uint32_t nRefIndex)
+CMemory CModule::GetVirtualMethodTable(const string& svTableName, const size_t nRefIndex)
 {
 	uint64_t nRVA; // Packed together as we can have multiple VFTable searches, but with different ref indexes.
 	string svPackedTableName = svTableName + std::to_string(nRefIndex);
diff --git a/r5dev/public/utility/module.h b/r5dev/public/utility/module.h
index 7dd96a84..4eec0087 100644
--- a/r5dev/public/utility/module.h
+++ b/r5dev/public/utility/module.h
@@ -31,7 +31,7 @@ public:
 	CMemory FindString(const string& string, const ptrdiff_t occurrence = 1, bool nullTerminator = false) const;
 	CMemory FindStringReadOnly(const string& svString, bool nullTerminator) const;
 
-	CMemory          GetVirtualMethodTable(const string& svTableName, const uint32_t nRefIndex = 0);
+	CMemory          GetVirtualMethodTable(const string& svTableName, const size_t nRefIndex = 0);
 #endif // !PLUGINSDK
 	CMemory          GetImportedFunction(const string& svModuleName, const string& svFunctionName, const bool bGetFunctionReference) const;
 	CMemory          GetExportedFunction(const string& svFunctionName) const;
@@ -50,7 +50,7 @@ public:
 	ModuleSections_t         m_ReadOnlyData;
 
 private:
-	CMemory FindPatternSIMD(const uint8_t* szPattern, const char* szMask, const ModuleSections_t* moduleSection = nullptr, const uint32_t nOccurrence = 0) const;
+	CMemory FindPatternSIMD(const uint8_t* szPattern, const char* szMask, const ModuleSections_t* moduleSection = nullptr, const size_t nOccurrence = 0) const;
 
 	string                   m_svModuleName;
 	uintptr_t                m_pModuleBase{};
diff --git a/r5dev/rtech/rtech_utils.cpp b/r5dev/rtech/rtech_utils.cpp
index 1051fffb..46116704 100644
--- a/r5dev/rtech/rtech_utils.cpp
+++ b/r5dev/rtech/rtech_utils.cpp
@@ -503,7 +503,7 @@ void RTech::CreateDXTexture(TextureHeader_t* textureHeader, int64_t imageData)
 	textureHeader->m_nTextureMipLevels = textureHeader->m_nPermanentMipCount;
 
 	const int totalStreamedMips = textureHeader->m_nOptStreamedMipCount + textureHeader->m_nStreamedMipCount;
-	uint32_t mipLevel = textureHeader->m_nPermanentMipCount + totalStreamedMips;
+	int mipLevel = textureHeader->m_nPermanentMipCount + totalStreamedMips;
 	if (mipLevel != totalStreamedMips)
 	{
 		do
diff --git a/r5dev/tier0/crashhandler.cpp b/r5dev/tier0/crashhandler.cpp
index 19fe68cb..fe2e9bf9 100644
--- a/r5dev/tier0/crashhandler.cpp
+++ b/r5dev/tier0/crashhandler.cpp
@@ -535,7 +535,7 @@ long __stdcall BottomLevelExceptionFilter(EXCEPTION_POINTERS* pExceptionInfo)
 	g_CrashHandler->SetExceptionPointers(pExceptionInfo);
 
 	// Let the higher level exception handlers deal with this particular exception.
-	if (g_CrashHandler->ExceptionToString() == g_CrashHandler->ExceptionToString(-1))
+	if (g_CrashHandler->ExceptionToString() == g_CrashHandler->ExceptionToString(0xFFFFFFFF))
 	{
 		g_CrashHandler->End();
 		return EXCEPTION_CONTINUE_SEARCH;
diff --git a/r5dev/tier1/bitbuf.cpp b/r5dev/tier1/bitbuf.cpp
index 858be410..ca3b2181 100644
--- a/r5dev/tier1/bitbuf.cpp
+++ b/r5dev/tier1/bitbuf.cpp
@@ -163,7 +163,7 @@ bool CBitRead::ReadString(char* pStr, int maxLen, bool bLine, int* pOutNumChars)
 	int iChar = 0;
 	while (1)
 	{
-		char val = ReadChar();
+		char val = char(ReadChar());
 		if (val == 0)
 			break;
 		else if (bLine && val == '\n')
@@ -189,7 +189,7 @@ bool CBitRead::ReadString(char* pStr, int maxLen, bool bLine, int* pOutNumChars)
 	return !IsOverflowed() && !bTooSmall;
 }
 
-bool CBitRead::Seek(size_t nPosition)
+bool CBitRead::Seek(int64_t nPosition)
 {
 	bool bSucc = true;
 	if (nPosition < 0 || nPosition > m_nDataBits)
@@ -239,7 +239,7 @@ bool CBitRead::Seek(size_t nPosition)
 	return bSucc;
 }
 
-void CBitRead::StartReading(const void* pData, size_t nBytes, size_t iStartBit, size_t nBits)
+void CBitRead::StartReading(const void* pData, size_t nBytes, int64_t iStartBit, int64_t nBits)
 {
 	// Make sure it's dword aligned and padded.
 	assert(((unsigned long)pData & 3) == 0);
diff --git a/r5dev/tier1/bitbuf.h b/r5dev/tier1/bitbuf.h
index ba1c2804..a7b23ae1 100644
--- a/r5dev/tier1/bitbuf.h
+++ b/r5dev/tier1/bitbuf.h
@@ -26,7 +26,7 @@ public:
 	////////////////////////////////////
 	const char* m_pDebugName;
 	uint8_t m_bOverflow;
-	size_t m_nDataBits;
+	int64_t m_nDataBits;
 	size_t m_nDataBytes;
 };
 
@@ -43,8 +43,8 @@ public:
 	int ReadChar();
 	bool ReadString(char* pStr, int bufLen, bool bLine = false, int* pOutNumChars = nullptr);
 
-	void StartReading(const void* pData, size_t nBytes, size_t iStartBit = 0, size_t nBits = -1);
-	bool Seek(size_t nPosition);
+	void StartReading(const void* pData, size_t nBytes, int64_t iStartBit = 0, int64_t nBits = -1);
+	bool Seek(int64_t nPosition);
 
 	////////////////////////////////////
 	uint32_t m_nInBufWord;
diff --git a/r5dev/tier1/strtools.cpp b/r5dev/tier1/strtools.cpp
index db01113f..073d4845 100644
--- a/r5dev/tier1/strtools.cpp
+++ b/r5dev/tier1/strtools.cpp
@@ -265,7 +265,7 @@ bool V_StringMatchesPattern(const char* pszSource, const char* pszPattern, int n
 			continue;
 		}
 
-		size_t nLength = 0;
+		ptrdiff_t nLength = 0;
 
 		while ((*pszPattern) != '*' && (*pszPattern) != 0)
 		{
@@ -278,7 +278,7 @@ bool V_StringMatchesPattern(const char* pszSource, const char* pszPattern, int n
 			const char* pszStartPattern = pszPattern - nLength;
 			const char* pszSearch = pszSource;
 
-			for (size_t i = 0; i < nLength; i++, pszSearch++, pszStartPattern++)
+			for (ptrdiff_t i = 0; i < nLength; i++, pszSearch++, pszStartPattern++)
 			{
 				if ((*pszSearch) == 0)
 				{