Originally posted by csa1864
there is no map pack 4, zombies will continue on in the next call of duty series done by treyarch. we are in the middle of a week long double xp, this week long double xp only happens when games are released and when the developers are saying thank you for buying our game, the map packs and playing but we are moving on to something new; which is call of duty 7 or whatever number it is.