Turns out its Sony's and Activision's fault that Call of Duty: Black Ops Declassified does not have a zombie mode, more details inside..........
In response to Nihilistic getting hate for not including Zombies in Call of Duty: Black Ops Declassified they sent out this tweet:
Only Activision and Sony have the power to greenlight Zombies mode for CoD Vita. We would love to do it if they ask. But its not our call.Why do you think Activision don't want portable zombies? Let us know your thoughts in the comments below!