Also, you can play versus(and survival, if you get the GOTY edition) offline by selecting join friends, the pressing X to start your own lobby, it tricks the game into letting you play the modes. Why there wasn't just an offline option on the main menu is beyond me.
Visa - Digits two through six are the bank number, digits seven through 12 or seven through 15 are the account number and digit 13 or 16 is a check digit. MasterCard - Digits two and three, two through four, two through five or two through six are the bank number (depending on whether digit two is a 1, 2, 3 or other).
Visa, MasterCard and Discover users. American Express users. The Credit Card Identification Number is the 3-digit number located on the back of your card, usually at the top of the signature strip. Look for the 4-digit number printed on the front of your card. Depending on which card you have, you'll find this number in small type above your credit card's main number on either the left or right side. We have implemented this security feature to protect you, the card holder.