I found the strings to display what text is displayed, and the .za files are simply "zip archives".
What I don't know however, is how to repack them. That would be very nice. I have editing to do
I want to add additional animals to hunt and new weapons to the game.
Also, change the sounds to be more realistic, and make it more realistic in general.
This is kind of an old game, but I really love it.
What would be even cooler is if the Map editor was changed, and the ability to edit the original maps was implemented.