tweak(five): error out cleanly for the errorcodes.txt failure condition

code/components/rage-device-five/src/HookInitialMount.cpp

@@ -162,8 +162,23 @@ static void PackfileEncryptionError()
 		ToNarrow(MakeRelativeGamePath(L"")));
 }
 
+static void CorruptedErrorCodes()
+{
+	FatalError("Corrupted Error Code File.\n"
+			   "Currently, the installation directory %s is being used.\n\n"
+			   "Please verify your game files, see http://rsg.ms/verify for more information on doing so.",
+	ToNarrow(MakeRelativeGamePath(L"")));
+}
+
 static HookFunction hookFunction([] ()
 {
+	// errorcodes loading failure
+	{
+		auto location = hook::get_pattern<char>("C3 33 D2 33 C9 E8 ? ? ? ? ? 33 D2", 5);
+		hook::call(location, CorruptedErrorCodes);
+		hook::call(location + 10, CorruptedErrorCodes);
+	}
+
 	// increase non-DLC fiDevice mount limit
 	{
 		// GTA project initialization code, arxan-obfuscated