<P> On March 18, 2009, Activision and Treyarch announced that downloadable content (DLC) was under development for World at War, titled Map Pack 1 . This first installment of DLC was released on March 19, 2009 for the PlayStation 3 and Xbox 360, while the Windows version received the DLC at a later date . The map pack includes three new multiplayer maps and one new Nazi Zombies map, entitled "Zombie Verrückt" (German: zombie crazy). The map is based on the multiplayer map Asylum, in turn based on the asylum in the campaign mission Ring of Steel . The map includes new weapons and power - ups intended to expand the experience . Players can turn on a power generator that reunites both sides of the map and enables "Perk - a-Cola" machines, which have been featured in every subsequent Nazi Zombies map . The new multiplayer map called "Nightfire" takes places at night in the streets of a bombed - out area of Berlin . The "Knee Deep" map is in the jungle of Peleliu and contains fortified huts and streams . "Station" is located in a ruined underground train station in Berlin featuring subway cars and hidden passages . Reports stated that Map Pack 1 sold over 1 million copies in the first week of availability, setting an Xbox Live record for the number of downloads in a week . </P> <P> On April 30, 2009, Activision and Treyarch announced Map Pack 2, which was released on June 11 . Map Pack 2 contains an additional four multiplayer maps . "Shi No Numa" (Japanese: "死 の 沼"' swamp of death') is a new map on the Nazi Zombies co-op mode, set in a misty swamp - land surrounded by jungle . New features include flaming hellhounds, the Wunderwaffe DG - 2 weapon and ten new achievements / trophies . The map also introduced four new playable characters who have appeared in several subsequent Nazi Zombie maps: Tank Dempsey U.S.M.C, Nikolai Belinski of the Red Army, Nazi Doctor Edward Richtofen and Takeo Masaki of the Japanese Imperial Army . The multiplayer map "Banzai" is set in a jungle featuring a river bridge, villages, a waterfall and hidden caves . The "Corrosion" map is set in a run - down train yard in Russia, featuring broken pipelines and train cars . The "Sub Pens" map is located in a bombed - out Japanese submarine base with heavy rain . </P> <P> On July 20, 2009, Activision and Treyarch announced Map Pack 3, which was released August 6, 2009 . This DLC also consists of three new multiplayer maps and a new Nazi Zombies map . The three multiplayer maps are "Battery", which takes place on an abandoned coastal artillery battery Pacific; "Breach", which is set in the overcrowded streets of Berlin, Germany near the Brandenburg Gate; and "Revolution", which is based on an industrialized city in Russia . The new Nazi Zombies map, "Der Riese" which means "The Giant" in English, is based in a factory where "element 115" is being processed and used to build teleporters and other mysterious devices, such as the "Pack - a-Punch Machine", which upgrades guns, such as the Wunderwaffe DG - 2 . New weapons such as Monkey Bombs were also added . This map also introduced the official backstory to Zombies mode, which is continued into Call of Duty: Black Ops . </P> <P> All map packs were released for free on Microsoft Windows . The packs were paid DLC for the Xbox 360 and PS3 . </P>

How accurate is call of duty world at war