In TANKS, there are two types of cards you can add to your tanks, Crew cards, and Upgrade Cards. Tanks limited to a certain amount of crew that can be added to them. You can add one Crew Card to your tank for each Crew Slot. A tank is limited to one Upgrade or Crew card of each type.




 Hero cards are marked with a medal. You may not have multiple copies of a Hero card in your force.




 You can use Crew and Upgrade cards to modify your tank. These are usually hidden until used for the first time.


Card Backs
You can use Crew and Upgrade cards to modify your tank. 
These are usually hidden until used for the first time.
Point values are printed on the back of the upgrade card.
 
  The Eye Symbol
Some Cards, like Concrete Armour, have an Eye symbol
on the back of their cards instead of a point cost.
Cards with an Eye symbol must start the game face up.