The Zipline is a unique feature to the Call of Duty: World at War Nazi Zombies map Shi No Numa and the Call of Duty: Black Ops Nazi Zombies map Call of the Dead. To be used, it has to be activated using a Control Panel outside of the Doctor's Quarters. Once activated, it goes to the Doctor's Quarters, where it costs 1500 points to ride up to the Warning Room of the main building. While moving, the zipline can kill zombies and down players. The Zipline offers a quick escape when the zombie horde becomes overwhelming. Players use it to exit the doctors quarters or the second floor of the main building. Players should be careful if there are more than two on it since players might get pushed off.
Players often "camp" (A method used by online players when one stays in one spot waiting for the enemy to come to him rather than going to the enemy) on the Zipline, two facing the front and two facing the back. It can be a good place to stay as the players are all close together, but if the zombies become overwhelming then the whole team will be in jeopardy. When the Zipline is at the second floor of the main building it is a good spot also to camp, at the back of the Zipline players can jump off into the doctors quarters swamp or run into the main building avoiding the zombies that were upstairs. When you activate the Zipline, you must wait about 30 seconds to use it. Just like the teleporters in Der Riese, it provides a quick escape from the swarming army of undead soldiers. Players cannot move when the Zipline is moving. Sometimes, players can use the Zipline to regroup with teammates who are lost or have been surrounded in the swamp.
- In Call of the Dead, zombies are able to use the ziplines.