diff --git a/src/client/component/gsc/script_extension.cpp b/src/client/component/gsc/script_extension.cpp
index 009613d8..56682adf 100644
--- a/src/client/component/gsc/script_extension.cpp
+++ b/src/client/component/gsc/script_extension.cpp
@@ -33,11 +33,6 @@ namespace gsc
 
 	namespace
 	{
-		struct gsc_error : public std::runtime_error
-		{
-			using std::runtime_error::runtime_error;
-		};
-
 		std::unordered_map<std::uint32_t, script_function> functions;
 		std::unordered_map<std::uint32_t, script_method> methods;
 
@@ -264,6 +259,11 @@ namespace gsc
 			}
 			console::info("%s\n", buffer.data());
 		}
+
+		scripting::script_value typeof(const function_args& args)
+		{
+			return args[0].type_name();
+		}
 	}
 
 	namespace function
@@ -365,6 +365,15 @@ namespace gsc
 
 			utils::hook::call(SELECT_VALUE(0x3CC9F3_b, 0x513A53_b), vm_error_stub);
 
+			if (game::environment::is_dedi())
+			{
+				function::add("isusingmatchrulesdata", [](const function_args& args)
+				{
+					// return 0 so the game doesn't override the cfg
+					return 0;
+				});
+			}
+
 			function::add("print", [](const function_args& args)
 			{
 				print(args);
@@ -457,12 +466,6 @@ namespace gsc
 				return scripting::script_value{};
 			});
 
-			function::add("isusingmatchrulesdata", [](const function_args& args)
-			{
-				// return 0 so the game doesn't override the cfg
-				return 0;
-			});
-
 			function::add("say", [](const function_args& args)
 			{
 				const auto message = args[0].as<std::string>();
@@ -471,6 +474,9 @@ namespace gsc
 				return scripting::script_value{};
 			});
 
+			function::add("typeof", typeof);
+			function::add("type", typeof);
+
 			method::add("tell", [](const game::scr_entref_t ent, const function_args& args)
 			{
 				if (ent.classnum != 0)
diff --git a/src/client/component/io.cpp b/src/client/component/io.cpp
index b1ca0882..64373558 100644
--- a/src/client/component/io.cpp
+++ b/src/client/component/io.cpp
@@ -20,7 +20,7 @@ namespace io
 {
 	namespace
 	{
-		bool use_root_folder = false;
+		bool allow_root_io = false;
 
 		void check_path(const std::filesystem::path& path)
 		{
@@ -34,7 +34,7 @@ namespace io
 		{
 			check_path(path);
 
-			if (use_root_folder)
+			if (allow_root_io)
 			{
 				static const auto fs_base_game = game::Dvar_FindVar("fs_basepath");
 				const std::filesystem::path fs_base_game_path(fs_base_game->current.string);
@@ -69,10 +69,10 @@ namespace io
 	public:
 		void post_unpack() override
 		{
-			use_root_folder = utils::flags::has_flag("io_game_dir");
-			if (use_root_folder)
+			allow_root_io = utils::flags::has_flag("allow_root_io");
+			if (allow_root_io)
 			{
-				console::warn("GSC has access to your game folder. To prevent possible malicious code, remove the '-io_game_dir' launch flag.");
+				console::warn("GSC has access to your game folder. Remove the '-allow_root_io' launch parameter to disable this feature.");
 			}
 
 			gsc::function::add("fileexists", [](const gsc::function_args& args)
diff --git a/src/client/component/json.cpp b/src/client/component/json.cpp
index 3a879694..8ff70958 100644
--- a/src/client/component/json.cpp
+++ b/src/client/component/json.cpp
@@ -94,7 +94,7 @@ namespace json
 			case (game::SCRIPT_FUNCTION):
 				return _value.as<scripting::function>().get_name();
 			default:
-				return "[unknown type]";
+				return utils::string::va("[%s]", _value.type_name().data());
 			};
 		}
 
diff --git a/src/client/game/scripting/script_value.hpp b/src/client/game/scripting/script_value.hpp
index 3adbb9ef..ee703e09 100644
--- a/src/client/game/scripting/script_value.hpp
+++ b/src/client/game/scripting/script_value.hpp
@@ -30,20 +30,19 @@ namespace scripting
 			{11, "builtin method"},
 			{12, "stack"},
 			{13, "animation"},
-			{14, "developer codepos"}, // this exists on H1 but not IW6 (also not sure if past here may be correct)
-			{15, "pre animation"},
-			{16, "thread"},
-			{17, "notify thread"},
-			{18, "time thread"},
-			{19, "child thread"},
-			{20, "struct"},
-			{21, "removed entity"},
-			{22, "entity"},
-			{23, "array"},
-			{24, "removed thread"},
-			{25, "<free>"},	// VAR_COUNT is 25 on H1, but 24 on IW6
-			{26, "thread list"},
-			{27, "endon list"},
+			{14, "pre animation"},
+			{15, "thread"},
+			{16, "notify thread"},
+			{17, "time thread"},
+			{18, "child thread"},
+			{19, "struct"},
+			{20, "removed entity"},
+			{21, "entity"},
+			{22, "array"},
+			{23, "removed thread"},
+			{24, "<free>"},
+			{25, "thread list"},
+			{26, "endon list"},
 		};
 
 		std::string get_typename(const game::VariableValue& value)
diff --git a/src/client/game/structs.hpp b/src/client/game/structs.hpp
index 155c7b5e..67bb8fe7 100644
--- a/src/client/game/structs.hpp
+++ b/src/client/game/structs.hpp
@@ -56,22 +56,21 @@ namespace game
 		VAR_BUILTIN_METHOD = 0xB,
 		VAR_STACK = 0xC,
 		VAR_ANIMATION = 0xD,
-		VAR_DEVELOPER_CODEPOS = 0xE,
-		VAR_PRE_ANIMATION = 0xF,
-		VAR_THREAD = 0x10,
-		VAR_NOTIFY_THREAD = 0x11,
-		VAR_TIME_THREAD = 0x12,
-		VAR_CHILD_THREAD = 0x13,
-		VAR_OBJECT = 0x14,
-		VAR_DEAD_ENTITY = 0x15,
-		VAR_ENTITY = 0x16,
-		VAR_ARRAY = 0x17,
-		VAR_DEAD_THREAD = 0x18,
-		VAR_COUNT = 0x19,
-		VAR_FREE = 0x19,
-		VAR_THREAD_LIST = 0x1A,
-		VAR_ENDON_LIST = 0x1B,
-		VAR_TOTAL_COUNT = 0x1C,
+		VAR_PRE_ANIMATION = 0xE,
+		VAR_THREAD = 0xF,
+		VAR_NOTIFY_THREAD = 0x10,
+		VAR_TIME_THREAD = 0x11,
+		VAR_CHILD_THREAD = 0x12,
+		VAR_OBJECT = 0x13,
+		VAR_DEAD_ENTITY = 0x14,
+		VAR_ENTITY = 0x15,
+		VAR_ARRAY = 0x16,
+		VAR_DEAD_THREAD = 0x17,
+		VAR_COUNT = 0x18,
+		VAR_FREE = 0x18,
+		VAR_THREAD_LIST = 0x19,
+		VAR_ENDON_LIST = 0x1A,
+		VAR_TOTAL_COUNT = 0x1B,
 	};
 
 	struct VariableStackBuffer