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Fast Files Dumper

Antoine Willerval edited this page Jun 15, 2026 · 3 revisions

acts contains a fast file dumper, on the supported games, it allows extracting different kind of assets.

Usage

The tool has the name fastfile. The syntax is

acts fastfile -r <handler> <path/to/file.ff>
  • <handler> is the handler to use to read the data
  • <path/to/file.ff> is the fastfile location

The option -R prints the handlers list

acts fastfile -R

For example, to dump all the GSC script from the fastfile zm_zod_patch.ff of a Black Ops 3 install, the command is:

acts -d fastfile -r gsc "O:\SteamLibrary\steamapps\common\Call of Duty Black Ops III\zone\zm_zod_patch.ff"

output

Oodle formats

Some games after bo3 are using the Oodle compression, acts will need you to copy inside your acts the oo2core_X_win64.dll file of your Call of Duty install (X the version) into the bin/deps directory of acts.

Patch files

Patch (.fd or .fp) files might be available with the fast file. To use get the latest version of the fastfile data, the patch should be loaded using the -p option.

Game dumpers

To use game dependant dumpers, you might need a dump of your exe. To create one you can use the game_dump tool with the path of the game. For example with Black Ops 3

acts game_dump bo3 "O:\SteamLibrary\steamapps\common\Call of Duty Black Ops III\"

Then the game dumper can be used. For example, to dump the assets using the Black Ops 3 dump tool, the command is

acts fastfile -r bo3 "O:\SteamLibrary\steamapps\common\Call of Duty Black Ops III\zone\"

(some assets might not be available to dump)

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