You do need the cards to play the game.
If you buy our figures they all come with their own card. However some people like yourself do prefer to play with their own figures, either because they are just trying out the rules or because they don't feel like to start collecting 1/48 figures just yet for whatever reason.
For this reason we provide free download & print yourself pdf version of all the cards for both the starter packs included in the basic campaign. They are available from the game website together with all the markers needed:
The rulebook also include a free set of cards and markers to get you started.
If the project gets funded we will also make available for sale just sets of printed cards only (without the miniatures) and printed markers... This will provide an inexpensive way for new players for getting into the game.
We also plan to offer download & print yourself pdf version for all the new figures and teams we will do, most likely sold via http://www.wargamevault.com for a small nominal fee.