GSC Tool

A utility to compile & decompile IW engine game scripts.

Supported Games

IW5 (Call of Duty: Modern Warfare 3)
IW6 (Call of Duty: Ghosts)
IW7 (Call of Duty: Infinite Warfare)
IW8 (Call of Duty: Modern Warfare (2019))
S1 (Call of Duty: Advanced Warfare)
S2 (Call of Duty: WWII)
S4 (Call of Duty: Vanguard)
H1 (Call of Duty: Modern Warfare Remastered)
H2 (Call of Duty: Modern Warfare 2 Campaign Remastered)
T4 (Call of Duty: World at War) *WIP*
T5 (Call of Duty: Black Ops) *WIP*
T6 (Call of Duty: Black Ops II)
T7 (Call of Duty: Black Ops III) *WIP*

Usage

./gsc-tool.exe <mode> <game> <path>

modes: asm, disasm, comp, decomp

games: iw5, iw6, iw7, iw8, s1, s2, s4, h1, h2, t6

paths: file, directory (recursive process all files inside dir)

for zonetool files (.cgsc, .cgsc.stack) use: zasm, zdisasm, zcomp, zdecomp modes

Mode	Description	Output
`asm`	assemble a `file.gscasm`	`file.gscbin`
`disasm`	dissasemble a `file.gscbin`	`file.gscasm`
`comp`	compile a `file.gsc`	`file.gscbin`
`decomp`	decompile a `file.gscbin`	`file.gsc`

File Format

If you need to extract scripts from fastfiles or game memory, use Zonetool or Jekyll.

gsc-tool .gscbin format is a serialized ScriptFile struct: name: null-term string, compressedLen: 4 byte uint, len: 4 byte uint, bytecodeLen: 4 byte uint, buffer: byte array[compressedLen], bytecode: byte array[bytecodeLen].
zonetool (IW5) format made of bytecode file .cgsc and decompressed stack buffer .cgsc.stack.
treyarch (T6) format is a single buffer with gscobj data .gsc or .csc.

Credits

This project is based on RektInator's gsc-asm. Special thanks to RektInator, JTAG & Dasfonia.

Disclaimer

This software has been created purely for the purposes of academic research. Project maintainers are not responsible or liable for misuse of the software. Use responsibly.

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