Download: https://github.com/Rebelhero/bo2-super-ee-for-all/releases/tag/v1.0
Source: https://github.com/Rebelhero/bo2-super-ee-for-all
This mod allows you to activate the super easter egg on buried with 1 - 4 players.
You still have to do all of the navcards and finish the easter eggs for Tranzit, Die Rise and Buried.
Note that the voice lines are overlapping when activated, but that's a Plutonium error, I can't do anything about that.
Enjoy.