The game is certainly has modability. As per the manual all modded files need to be placed in:
User data such as saved games, screen shots, configuration
and log files are stored in the following locations:
“C:\Documents and Settings\<user>\Application Data\Proxy
Mac OS X:
“/Users/<user>/Library/Application Support/Proxy Studios/Pandora/”
The “Data/” directory in the installation directory is managed
by the updater, do not modify it. Any added or modified files
may be deleted or replaced.
For modifications create a “Data/” directory with the same
structure in the user data directory outlined above. Files placed
there will be loaded instead of their distributed equivalents.
So you would need to create the Data folder so it would read like this:
Sounds are in Ogg. This is an open licience codex and thus free players like Audacity can save in this format.
The faction animations are in .mkv format. not so common on PC but their are converters available. PS3s, phones and such commonly use this video codex but common movie editing software for PCs like Pinnacle or Sony do not support it. Your need to convert them to MP4 or whatnot, edit, and then convert the edits back to .mkv. You can get a good video converter for under $30.
Terrain graphics are also found in the data area and can obviously be also modded, but i have noticed XML files call engine shaders for them. I am not sure yet if we can mod our own shaders or not, by pointing to them inside the XML file.
All other data is in xml. This will be quite easy to remove or add to the tech tree, tweak units, etc
I am currently working on a mod to remodel and replace the faction animations and sound. It'll take a while, I've modeled one so far. There are six expressions that need to be modeled and made into an .mkv for each one, as well as replacing their still images so it's a bit of work...but I find the defaults rather generic looking and wanted to start here. I'll post it up here when I'm finished with them for everyone.
BTW I'm known as Ghostryder on the wargamer forums.