3 new Multiplayer maps
Nightfire
In "Nightfire," players take to the streets of a war-ravaged Berlin with only the flames of the burning city to expose the enemy.
Station
"Station" offers a bombed out underground train station littered with hidden passageways and destroyed subway cars.
Knee Deep
"Knee Deep" takes place on the island of Peleliu in a once tranquil village turned chaotic Japanese command center.
and 1 new zombie map!!!
Verrückt (Zombie Asylum)
The fan favorite 4-player co-op Nazi Zombies Bonus Mode returns with "Verrückt," a terrifying Zombie asylum featuring more weapons, perks via the addition of Perks-a-Cola machines, electroshock defenses and the endless zombie horde.
I don't know about the price but I may buy this because I <3 zombie mode and Call of Duty's MP is always fun too.