I should've pointed out that I plan to include some custom vehicle cards for figures that can be had but didn't come with the game so sets might have more cards than you think...but I tend to agree with a complete set...does push the price up though.
I also wonder if there would be an advantage to including 2 of everything so that you can see your opponents stats at a glance.
As for additional rules, I have included some optional rules of mine on the back of most of the cards (the Panther is tough enough so it didn't get any). Again, there will also be some new units in the decks as well.
But essentially I'll still be able to play the game 'as is' with these (just ignore the back)?
Any chance of you doing the infantry as well? I love the idea of using cards instead of the sheets and really like your design.