en-us https://www.intensedebate.com/users/264762 Comments by OneStop_PwnShop http://www.fourzerotwo.com/2008/11/11/codwaw-hits-today-must-unlock-zombie-nazi-mode/#IDComment10614495 FourZeroTwo, can you unlock Zombie Mode by playing co-op? Me and my cousin are attempting to do so over Xbox Live. I've read the only way to unlock it, is to play the Solo Campaign. Is it true? Thu, 13 Nov 2008 02:47:59 +0000 http://www.fourzerotwo.com/2008/11/11/codwaw-hits-today-must-unlock-zombie-nazi-mode/#IDComment10614495