diff --git a/deps/extra/gsc-tool/interface.cpp b/deps/extra/gsc-tool/interface.cpp
index fe4482c..fa95b94 100644
--- a/deps/extra/gsc-tool/interface.cpp
+++ b/deps/extra/gsc-tool/interface.cpp
@@ -11,18 +11,8 @@ namespace gsc
 		return compiler;
 	}
 
-	std::unique_ptr<xsk::gsc::decompiler> decompiler()
-	{
-		return std::make_unique<xsk::gsc::iw5::decompiler>();
-	}
-
 	std::unique_ptr<xsk::gsc::assembler> assembler()
 	{
 		return std::make_unique<xsk::gsc::iw5::assembler>();
 	}
-
-	std::unique_ptr<xsk::gsc::disassembler> disassembler()
-	{
-		return std::make_unique<xsk::gsc::iw5::disassembler>();
-	}
 }
diff --git a/deps/extra/gsc-tool/interface.hpp b/deps/extra/gsc-tool/interface.hpp
index 133e6ae..4d98ad3 100644
--- a/deps/extra/gsc-tool/interface.hpp
+++ b/deps/extra/gsc-tool/interface.hpp
@@ -3,7 +3,5 @@
 namespace gsc
 {
 	std::unique_ptr<xsk::gsc::compiler> compiler();
-	std::unique_ptr<xsk::gsc::decompiler> decompiler();
 	std::unique_ptr<xsk::gsc::assembler> assembler();
-	std::unique_ptr<xsk::gsc::disassembler> disassembler();
 }
diff --git a/src/game/game.cpp b/src/game/game.cpp
index ea5a1b3..a6b4263 100644
--- a/src/game/game.cpp
+++ b/src/game/game.cpp
@@ -13,6 +13,7 @@ namespace game
 
 		DB_LoadXAssets_t DB_LoadXAssets;
 		DB_FindXAssetHeader_t DB_FindXAssetHeader;
+		DB_IsXAssetDefault_t DB_IsXAssetDefault;
 
 		Dvar_RegisterBool_t Dvar_RegisterBool;
 		Dvar_RegisterString_t Dvar_RegisterString;
@@ -46,6 +47,12 @@ namespace game
 		Sys_ShowConsole_t Sys_ShowConsole;
 		Sys_Error_t Sys_Error;
 		Sys_Milliseconds_t Sys_Milliseconds;
+		Sys_Sleep_t Sys_Sleep;
+
+		PMem_AllocFromSource_NoDebug_t PMem_AllocFromSource_NoDebug;
+
+		Hunk_AllocateTempMemoryHighInternal_t Hunk_AllocateTempMemoryHighInternal;
+		Hunk_FreeTempMemory_t Hunk_FreeTempMemory;
 
 		VM_Notify_t VM_Notify;
 
@@ -78,6 +85,7 @@ namespace game
 		Com_Quit_f_t Com_Quit_f;
 
 		FS_Printf_t FS_Printf;
+		FS_ReadFile_t FS_ReadFile;
 
 		player_die_t player_die;
 
@@ -127,6 +135,8 @@ namespace game
 		int* dvarCount;
 		dvar_t** sortedDvars;
 
+		FastCriticalSection* db_hashCritSect;
+
 		int Vec4Compare(const float* a, const float* b)
 		{
 			return a[0] == b[0] && a[1] == b[1] && a[2] == b[2] && a[3] == b[3];
@@ -528,6 +538,18 @@ namespace game
 			return id == *threadId[THREAD_CONTEXT_SERVER];
 		}
 
+		void Sys_LockRead(FastCriticalSection* critSect)
+		{
+			InterlockedIncrement(&critSect->readCount);
+			while (critSect->writeCount) Sys_Sleep(0);
+		}
+
+		void Sys_UnlockRead(FastCriticalSection* critSect)
+		{
+			assert(critSect->readCount > 0);
+			InterlockedDecrement(&critSect->readCount);
+		}
+
 		void FS_FCloseFile(int h)
 		{
 			reinterpret_cast<void(*)(int)>(SELECT_VALUE(0x415160, 0x5AF170))(h);
@@ -606,6 +628,38 @@ namespace game
 		{
 			assert(*fs_searchpaths);
 		}
+
+		XAssetEntry* db_find_x_asset_entry(XAssetType type_, const char* name)
+		{
+			static DWORD func = SELECT_VALUE(0x585400, 0x4CA450);
+			XAssetEntry* result{};
+
+			__asm
+			{
+				pushad
+				push name
+				mov edi, type_
+				call func
+				add esp, 0x4
+				mov result, eax
+				popad
+			}
+
+			return result;
+		}
+
+		XAssetEntry* DB_FindXAssetEntry(XAssetType type, const char* name)
+		{
+			return db_find_x_asset_entry(type, name);
+		}
+
+		int DB_XAssetExists(XAssetType type, const char* name)
+		{
+			Sys_LockRead(db_hashCritSect);
+			auto* asset_entry = DB_FindXAssetEntry(type, name);
+			Sys_UnlockRead(db_hashCritSect);
+			return asset_entry != nullptr;
+		}
 	}
 
 	launcher::mode mode = launcher::mode::none;
@@ -642,6 +696,7 @@ namespace game
 
 		native::DB_LoadXAssets = native::DB_LoadXAssets_t(SELECT_VALUE(0x48A8E0, 0x4CD020));
 		native::DB_FindXAssetHeader = native::DB_FindXAssetHeader_t(SELECT_VALUE(0x4FF000, 0x4CA620));
+		native::DB_IsXAssetDefault = native::DB_IsXAssetDefault_t(SELECT_VALUE(0x4868E0, 0x4CA800));
 
 		native::Dvar_RegisterBool = native::Dvar_RegisterBool_t(SELECT_VALUE(0x4914D0, 0x5BE9F0));
 		native::Dvar_RegisterString = native::Dvar_RegisterString_t(SELECT_VALUE(0x5197F0, 0x5BEC90));
@@ -676,6 +731,12 @@ namespace game
 		native::Sys_ShowConsole = native::Sys_ShowConsole_t(SELECT_VALUE(0x470AF0, 0x5CF590));
 		native::Sys_Error = native::Sys_Error_t(SELECT_VALUE(0x490D90, 0x5CC3B0));
 		native::Sys_Milliseconds = native::Sys_Milliseconds_t(SELECT_VALUE(0x4A1610, 0x5CE740));
+		native::Sys_Sleep = native::Sys_Sleep_t(SELECT_VALUE(0x438600, 0x55F460));
+
+		native::PMem_AllocFromSource_NoDebug = native::PMem_AllocFromSource_NoDebug_t(SELECT_VALUE(0x449E50, 0x5C15C0));
+
+		native::Hunk_AllocateTempMemoryHighInternal = native::Hunk_AllocateTempMemoryHighInternal_t(SELECT_VALUE(0x517870, 0x5B6C60));
+		native::Hunk_FreeTempMemory = native::Hunk_FreeTempMemory_t(SELECT_VALUE(0x434A40, 0x5B6F90));
 
 		native::VM_Notify = native::VM_Notify_t(SELECT_VALUE(0x610200, 0x569720));
 
@@ -716,6 +777,7 @@ namespace game
 		native::Com_Quit_f = native::Com_Quit_f_t(SELECT_VALUE(0x4F48B0, 0x5556B0));
 
 		native::FS_Printf = native::FS_Printf_t(SELECT_VALUE(0x421E90, 0x5AF7C0));
+		native::FS_ReadFile = native::FS_ReadFile_t(SELECT_VALUE(0x4D8DF0, 0x5B1FB0));
 
 		native::player_die = native::player_die_t(SELECT_VALUE(0x0, 0x503460));
 
@@ -770,5 +832,7 @@ namespace game
 
 		native::dvarCount = reinterpret_cast<int*>(SELECT_VALUE(0x1C42398, 0x59CCDD8));
 		native::sortedDvars = reinterpret_cast<native::dvar_t**>(SELECT_VALUE(0x1C423C0, 0x59CCE00));
+
+		native::db_hashCritSect = reinterpret_cast<native::FastCriticalSection*>(SELECT_VALUE(0xFA9E7C, 0x18596E4));
 	}
 }
diff --git a/src/game/game.hpp b/src/game/game.hpp
index a7054eb..3a9e08e 100644
--- a/src/game/game.hpp
+++ b/src/game/game.hpp
@@ -29,6 +29,9 @@ namespace game
 		typedef XAssetHeader (*DB_FindXAssetHeader_t)(XAssetType type, const char* name, int allowCreateDefault);
 		extern DB_FindXAssetHeader_t DB_FindXAssetHeader;
 
+		typedef int (*DB_IsXAssetDefault_t)(XAssetType type, const char* name);
+		extern DB_IsXAssetDefault_t DB_IsXAssetDefault;
+
 		typedef const dvar_t* (*Dvar_RegisterBool_t)(const char* dvarName, bool value,
 			unsigned __int16 flags, const char* description);
 		extern Dvar_RegisterBool_t Dvar_RegisterBool;
@@ -97,6 +100,18 @@ namespace game
 		typedef int (*Sys_Milliseconds_t)();
 		extern Sys_Milliseconds_t Sys_Milliseconds;
 
+		typedef void (*Sys_Sleep_t)(int msec);
+		extern Sys_Sleep_t Sys_Sleep;
+
+		typedef void* (*PMem_AllocFromSource_NoDebug_t)(unsigned int size, unsigned int alignment, unsigned int type, int source);
+		extern PMem_AllocFromSource_NoDebug_t PMem_AllocFromSource_NoDebug;
+
+		typedef void* (*Hunk_AllocateTempMemoryHighInternal_t)(unsigned int size);
+		extern Hunk_AllocateTempMemoryHighInternal_t Hunk_AllocateTempMemoryHighInternal;
+
+		typedef void (*Hunk_FreeTempMemory_t)(void* buf);
+		extern Hunk_FreeTempMemory_t Hunk_FreeTempMemory;
+
 		typedef void (*VM_Notify_t)(unsigned int notifyListOwnerId, unsigned int stringValue, VariableValue* top);
 		extern VM_Notify_t VM_Notify;
 
@@ -158,6 +173,9 @@ namespace game
 		typedef void (*FS_Printf_t)(int h, const char* fmt, ...);
 		extern FS_Printf_t FS_Printf;
 
+		typedef int (*FS_ReadFile_t)(const char* qpath, char** buffer);
+		extern FS_ReadFile_t FS_ReadFile;
+
 		typedef void (*player_die_t)(gentity_s* self, const gentity_s* inflictor, gentity_s* attacker, int damage, int meansOfDeath, const Weapon* iWeapon, bool isAlternate, const float* vDir, const hitLocation_t hitLoc, int psTimeOffset);
 		extern player_die_t player_die;
 
@@ -210,6 +228,8 @@ namespace game
 		extern int* dvarCount;
 		extern dvar_t** sortedDvars;
 
+		extern FastCriticalSection* db_hashCritSect;
+
 		// Global Definitions & Functions
 		constexpr auto JUMP_LAND_SLOWDOWN_TIME = 1800;
 
@@ -309,6 +329,9 @@ namespace game
 		int FS_FOpenFileReadForThread(const char* filename, int* file, FsThread thread);
 		int FS_CreatePath(char* OSPath);
 		void FS_CheckFileSystemStarted();
+
+		XAssetEntry* DB_FindXAssetEntry(XAssetType type, const char* name);
+		int DB_XAssetExists(XAssetType type, const char* name);
 	}
 
 	bool is_mp();
diff --git a/src/game/structs.hpp b/src/game/structs.hpp
index fb937aa..2748a0d 100644
--- a/src/game/structs.hpp
+++ b/src/game/structs.hpp
@@ -389,10 +389,48 @@ namespace game
 			unsigned char* bytecode;
 		};
 
+		struct RawFile
+		{
+			const char* name;
+			int compressedLen;
+			int len;
+			const char* buffer;
+		};
+
 		union XAssetHeader
 		{
 			void* data;
 			ScriptFile* scriptfile;
+			RawFile* rawfile;
+		};
+
+		struct XAsset
+		{
+			XAssetType type;
+			XAssetHeader header;
+		};
+
+		struct XAssetEntry
+		{
+			XAsset asset;
+			char zoneIndex;
+			volatile char inuseMask;
+			bool printedMissingAsset;
+			unsigned __int16 nextHash;
+			unsigned __int16 nextOverride;
+		};
+
+		struct TempPriority
+		{
+			void* threadHandle;
+			int oldPriority;
+		};
+
+		struct FastCriticalSection
+		{
+			volatile long readCount;
+			volatile long writeCount;
+			TempPriority tempPriority;
 		};
 
 		enum errorParm_t
@@ -437,6 +475,14 @@ namespace game
 			LOCMSG_NOERR,
 		};
 
+		enum PMem_Source
+		{
+			PMEM_SOURCE_EXTERNAL,
+			PMEM_SOURCE_DATABASE,
+			PMEM_SOURCE_MOVIE,
+			PMEM_SOURCE_SCRIPT,
+		};
+
 		struct cmd_function_t
 		{
 			cmd_function_t* next;
diff --git a/src/module/gsc/script_error.cpp b/src/module/gsc/script_error.cpp
index 7b4fa61..5053e50 100644
--- a/src/module/gsc/script_error.cpp
+++ b/src/module/gsc/script_error.cpp
@@ -51,7 +51,7 @@ namespace gsc
 			}
 			else
 			{
-				unknown_function_error = std::format("unknown script '{}'", scripting::current_file);
+				unknown_function_error = std::format("unknown script '{}'.gsc", scripting::current_file);
 			}
 		}
 
diff --git a/src/module/gsc/script_loading.cpp b/src/module/gsc/script_loading.cpp
index e60ec04..c1da12a 100644
--- a/src/module/gsc/script_loading.cpp
+++ b/src/module/gsc/script_loading.cpp
@@ -1,12 +1,180 @@
 #include <std_include.hpp>
+#include <loader/module_loader.hpp>
 #include "game/game.hpp"
 
 #include "script_loading.hpp"
 
+#include "module/log_file.hpp"
+#include "module/scripting.hpp"
+
+#include <utils/hook.hpp>
+#include <utils/memory.hpp>
+
+#include <xsk/gsc/types.hpp>
+#include <xsk/gsc/interfaces/compiler.hpp>
+#include <xsk/gsc/interfaces/assembler.hpp>
+#include <xsk/utils/compression.hpp>
+#include <xsk/resolver.hpp>
+#include <interface.hpp>
+
 namespace gsc
 {
+	namespace
+	{
+		auto compiler = ::gsc::compiler();
+		auto assembler = ::gsc::assembler();
+
+		utils::memory::allocator script_file_allocator;
+
+		std::unordered_map<std::string, game::native::ScriptFile*> loaded_scripts;
+
+		void clear()
+		{
+			loaded_scripts.clear();
+			script_file_allocator.clear();
+		}
+
+		bool read_script_file(const std::string& name, std::string* data)
+		{
+			char* buffer{};
+			const auto file_len = game::native::FS_ReadFile(name.data(), &buffer);
+			if (file_len > 0 && buffer)
+			{
+				data->append(buffer, file_len);
+				game::native::Hunk_FreeTempMemory(buffer);
+				return true;
+			}
+
+			return false;
+		}
+
+		game::native::ScriptFile* load_custom_script(const char* file_name, const std::string& real_name)
+		{
+			if (const auto itr = loaded_scripts.find(real_name); itr != loaded_scripts.end())
+			{
+				return itr->second;
+			}
+
+			std::string source_buffer;
+			if (!read_script_file(real_name + ".gsc", &source_buffer))
+			{
+				return nullptr;
+			}
+
+			std::vector<std::uint8_t> data;
+			data.assign(source_buffer.begin(), source_buffer.end());
+
+			try
+			{
+				compiler->compile(real_name, data);
+			}
+			catch (const std::exception& ex)
+			{
+				log_file::info("*********** script compile error *************\n");
+				log_file::info("failed to compile '%s':\n%s", real_name.data(), ex.what());
+				log_file::info("**********************************************\n");
+				return nullptr;
+			}
+
+			auto assembly = compiler->output();
+
+			try
+			{
+				assembler->assemble(real_name, assembly);
+			}
+			catch (const std::exception& ex)
+			{
+				log_file::info("*********** script compile error *************\n");
+				log_file::info("failed to assemble '%s':\n%s", real_name.data(), ex.what());
+				log_file::info("**********************************************\n");
+				return nullptr;
+			}
+
+			const auto script_file_ptr = static_cast<game::native::ScriptFile*>(script_file_allocator.allocate(sizeof(game::native::ScriptFile)));
+			script_file_ptr->name = file_name;
+
+			const auto stack = assembler->output_stack();
+			script_file_ptr->len = static_cast<int>(stack.size());
+
+			const auto script = assembler->output_script();
+			script_file_ptr->bytecodeLen = static_cast<int>(script.size());
+
+			const auto compressed = xsk::utils::zlib::compress(stack);
+			const auto stack_size = compressed.size();
+			const auto byte_code_size = script.size() + 1;
+
+			script_file_ptr->buffer = static_cast<char*>(game::native::Hunk_AllocateTempMemoryHighInternal(stack_size));
+			std::memcpy(const_cast<char*>(script_file_ptr->buffer), compressed.data(), compressed.size());
+
+			script_file_ptr->bytecode = static_cast<std::uint8_t*>(game::native::PMem_AllocFromSource_NoDebug(byte_code_size, 4, 0, game::native::PMEM_SOURCE_SCRIPT));
+			std::memcpy(script_file_ptr->bytecode, script.data(), script.size());
+
+			script_file_ptr->compressedLen = static_cast<int>(compressed.size());
+
+			loaded_scripts[real_name] = script_file_ptr;
+
+			return script_file_ptr;
+		}
+
+		std::string get_script_file_name(const std::string& name)
+		{
+			const auto id = xsk::gsc::iw5::resolver::token_id(name);
+			if (!id)
+			{
+				return name;
+			}
+
+			return std::to_string(id);
+		}
+
+		int db_is_x_asset_default(game::native::XAssetType type, const char* name)
+		{
+			if (loaded_scripts.contains(name))
+			{
+				return 0;
+			}
+
+			return game::native::DB_IsXAssetDefault(type, name);
+		}
+	}
+
 	game::native::ScriptFile* find_script(game::native::XAssetType type, const char* name, int allow_create_default)
 	{
+		std::string real_name = name;
+		const auto id = static_cast<std::uint16_t>(std::strtol(name, nullptr, 10));
+		if (id)
+		{
+			real_name = xsk::gsc::iw5::resolver::token_name(id);
+		}
+
+		auto* script = load_custom_script(name, real_name);
+		if (script)
+		{
+			return script;
+		}
+
 		return game::native::DB_FindXAssetHeader(type, name, allow_create_default).scriptfile;
 	}
+
+	class script_loading final : public module
+	{
+	public:
+		void post_load() override
+		{
+			// ProcessScript
+			utils::hook(SELECT_VALUE(0x44685E, 0x56B13E), find_script, HOOK_CALL).install()->quick();
+			utils::hook(SELECT_VALUE(0x446868, 0x56B148), db_is_x_asset_default, HOOK_CALL).install()->quick();
+
+			scripting::on_shutdown([](int free_scripts) -> void
+			{
+				if (free_scripts)
+				{
+					xsk::gsc::iw5::resolver::cleanup();
+					clear();
+				}
+			});
+		}
+	};
 }
+
+REGISTER_MODULE(gsc::script_loading)
diff --git a/src/module/patches.cpp b/src/module/patches.cpp
index dcc464c..9bd843c 100644
--- a/src/module/patches.cpp
+++ b/src/module/patches.cpp
@@ -37,7 +37,7 @@ private:
 		utils::hook::set<std::uint8_t>(0x663B5A, 0xEB);
 		utils::hook::set<std::uint8_t>(0x663C54, 0xEB);
 
-		// archive "name" dvar
+		// Archive "name" dvar
 		utils::hook::set<std::uint8_t>(0x4296F9, game::native::DVAR_ARCHIVE);
 
 		utils::hook(0x44C640, &live_get_local_client_name_stub, HOOK_JUMP).install()->quick();
@@ -48,10 +48,17 @@ private:
 		// Note: on SP the max value is already 1000
 		utils::hook(0x55411F, &dvar_register_com_max_fps, HOOK_CALL).install()->quick();
 
-		// archive "name" dvar
+		// Archive "name" dvar
 		utils::hook::set<std::uint32_t>(0x492C82, game::native::DVAR_USERINFO | game::native::DVAR_ARCHIVE);
 
 		utils::hook(0x5C9980, &live_get_local_client_name_stub, HOOK_JUMP).install()->quick();
+
+		// Unpure client detected
+		utils::hook::set<std::uint8_t>(0x57228C, 0xEB);
+
+		// Allow any IWD file to be loaded
+		utils::hook::nop(0x5B090F, 6);
+		utils::hook::nop(0x5B092C, 6);
 	}
 
 	void patch_dedi() const
diff --git a/src/module/scripting.cpp b/src/module/scripting.cpp
index 250fd7d..6ee7f4e 100644
--- a/src/module/scripting.cpp
+++ b/src/module/scripting.cpp
@@ -24,6 +24,8 @@ namespace scripting
 		std::uint32_t current_file_id = 0;
 		std::string current_script_file;
 
+		std::vector<std::function<void(int)>> shutdown_callbacks;
+
 		std::string get_token(unsigned int id)
 		{
 			return find_token(id);
@@ -93,6 +95,22 @@ namespace scripting
 
 			utils::hook::invoke<void>(SELECT_VALUE(0x446850, 0x56B130), filename);
 		}
+
+		void g_shutdown_game_stub(int free_scripts)
+		{
+			utils::hook::invoke<void>(SELECT_VALUE(0x528A90, 0x50C100), free_scripts);
+
+			if (free_scripts)
+			{
+				script_function_table_sort.clear();
+				script_function_table.clear();
+			}
+
+			for (const auto& callback : shutdown_callbacks)
+			{
+				callback(free_scripts);
+			}
+		}
 	}
 
 	std::string get_token(unsigned int id)
@@ -100,6 +118,11 @@ namespace scripting
 		return find_token(id);
 	}
 
+	void on_shutdown(const std::function<void(int)>& callback)
+	{
+		shutdown_callbacks.push_back(callback);
+	}
+
 	class scripting_class final : public module
 	{
 	public:
@@ -131,6 +154,9 @@ namespace scripting
 
 			utils::hook(SELECT_VALUE(0x44690A, 0x56B1EA), &scr_set_thread_position, HOOK_CALL).install()->quick();
 			utils::hook(SELECT_VALUE(0x4232A8, 0x561748), &process_script, HOOK_CALL).install()->quick();
+
+			utils::hook(SELECT_VALUE(0x651E1B, 0x573C82), &g_shutdown_game_stub, HOOK_CALL).install()->quick();
+			utils::hook(SELECT_VALUE(0x651ECC, 0x573D3A), &g_shutdown_game_stub, HOOK_CALL).install()->quick();
 		}
 
 		void pre_destroy() override
diff --git a/src/module/scripting.hpp b/src/module/scripting.hpp
index 2f2a480..5a1dd29 100644
--- a/src/module/scripting.hpp
+++ b/src/module/scripting.hpp
@@ -9,4 +9,6 @@ namespace scripting
 	extern std::string current_file;
 
 	std::string get_token(unsigned int id);
+
+	void on_shutdown(const std::function<void(int)>& callback);
 }
diff --git a/src/std_include.hpp b/src/std_include.hpp
index 2f1f3b2..248a7c4 100644
--- a/src/std_include.hpp
+++ b/src/std_include.hpp
@@ -42,6 +42,7 @@
 #include <atomic>
 #include <chrono>
 #include <filesystem>
+#include <format>
 #include <fstream>
 #include <map>
 #include <mutex>