The Observation Tower expansion will add another great twist to Camp Pinetop. During set-up the Observation Tower will be placed out on a random map tile. During gameplay when you are on a random row or column with the Observation Tower you will gain additional benefits. Adding the Double Supply Cards will give an added strategy to the game. During play you will rank up and this will decrease the amount of cards you can have in your hand. The Double Supply Cards can count as two supply cards of that kind instead of the standard one.