Released in November 2009, Call of Duty: Modern Warfare 2 (MW2) is widely considered a landmark title in first-person shooter history. Developed by Infinity Ward and published by Activision, it shattered entertainment sales records and defined online multiplayer for a generation. On the PlayStation 3 (PS3), the game originally shipped on a Blu-ray disc. However, in the ecosystem of console modding, digital backups, and custom firmware (CFW), the game is often encountered as a PKG file.
This article explains what a PS3 PKG file is, how MW2 fits into that format, the different types of MW2 PKG files available, and the technical requirements for using them.
Once you install an MW2 PKG (official or converted), the internal file structure looks like this: Call Of Duty Modern Warfare 2 Ps3 Pkg
| Folder/File | Purpose |
|-------------|---------|
| USRDIR/EBOOT.BIN | Main encrypted executable (SPRX modules for multiplayer) |
| USRDIR/english/ | Audio assets (dialogue, sound effects) |
| USRDIR/video/ | BIK video files (cutscenes, intro) |
| USRDIR/zone/ | Game zones/maps (.ff files — a modified IW engine format) |
| USRDIR/patch_mp.ff | Multiplayer quick-fix data |
| LICDIR/ | License files (for official digital versions) |
The EBOOT.BIN in MW2 is particularly important because it contains anti-modding checks. Many CFW users replace it with a patched EBOOT to enable cheats, mod menus, or bypass the version check. Released in November 2009, Call of Duty: Modern
A PKG file on the PlayStation 3 is essentially a software package. It is the same format used by Sony for official digital downloads from the PlayStation Store. When you download a game directly to your PS3’s hard drive, the system installs it via a .pkg file.
In the context of Modern Warfare 2, a PS3 PKG represents a full digital copy of the game—including the base game, updates, and sometimes DLC (Stimulus Package or Resurgence Pack)—wrapped into an installable archive. Once you install an MW2 PKG (official or
The base PKG usually includes version 1.00. To play online (via private servers or archived lobbies), you need updates: