Subsystem Documentation

Each subsystem has its own page: what it is responsible for, how the main path works, and its key entry points. The exhaustive per-VA tables live in the per-binary indexes. Shared VAs are described once in shared.md; boundary calls are in SUBSYSTEM_SEAMS.md; the exhaustive lookup starts at MASTER_INDEX.md.

EXE subsystems

Subsystem	VAs	What it covers
Render	2708	Owns the MidLevelRenderer (MLR) scene pipeline and the D3D7 immediate-mode device boundary. It turns game state into sorted draw records, evaluates animation and lighting, streams terrain and textures, and hands final primitives to the device and present paths.
Runtime	2626	Engine/runtime services: memory, reference counting, threads and locks, object lifetime, and virtual/command dispatch.
Gameplay	2525	Simulation state and rules: mechs, movers, pilots, missions, objectives, teams, sensors, vehicles, and the collision and geometry queries they use.
AI	1308	AI decision layer, ABL script runtime, navigation, targeting, squad control, and AI combat decisions.
Database	691	Object/container model: binary-search trees, linked lists, iterators, hash tables, object tables, and database wrappers.
UI	672	gosScript-driven 2D UI: HUD, menus, dialogs, cursor, and screen state.
Network	382	Multiplayer transport, lobby/session state, GameSpy discovery, and ZoneMatch matchmaking.
Archive	285	#VBD archives, streams, file I/O, and path handling.
Platform	256	Win32/COM/DLL/registry glue, DirectDraw/D3D wrappers, import thunks, and the in-image SafeDisc/anti-tamper wrapper.
Log	192	Logging, assertions, error reporting, and diagnostic output.
Combat	141	In-mission weapon fire, launch/guidance, hit resolution, and damage application.
C Runtime	21	C/C++ runtime helpers: strings, memory primitives, formatting, and math.
Config	13	options.ini/config-file framework, option registry, and persistence.
Input	11	Keyboard/mouse/joystick state and command bindings.
Audio	8	Sound, music, and audio-device delivery.
Crypto	6	MD5, hashing, and base64 helpers.
Codec	2	LZW compression/decompression and related byte codecs.

Reference categories

Category	VAs	What it covers
Data Sections and Tables	638	Non-code sections and in-.text jump/pointer tables.
Unclassified Helpers	1137	Helpers that could not be assigned to a system from the available evidence.

Modules

Module	VAs	What it covers
GunDll.dll	3213	COM lobby/account client: registration, string/GUID and hash tables, crypto, HTTP, sockets, and the lobby object model.
MW4Stats.dll	1091	Stats recording, XML serialization, Zone upload, and Gun authentication.
blade.dll	739	DirectDraw proxy DLL with COM exports, a large facade state machine, caps/accessor wrappers, and a software rasterizer.
Language.dll	104	Codepage-aware localizable string-table loader.
MissionLang_MERCS.dll	69	Mission/string-table loader mirroring Language.dll.
ZlogLib.dll	33	Logging API (GetngLogAPI) with lifecycle, emit, MD5, and memory helpers.