the maps we play on or the ones displayed on the notebook?
The notebook maps, I have a couple player version
HERE on my
"Aces High Help" page. They were made by 8thJinx and 1ijac. You can make your own as well.
For the maps, each is downloaded as you try to enter an arena with that map. If you want to look at/fly on some of the scenario maps, or combat maps, or maps that players post up, open a custom arena and select the map you want, and the game will down load it when you open the arena.
