COD Black Ops Cold War Campaign
The COD Black Ops Cold War Campaign might possibly go down as the best COD campaign ever made. There are multiple easter eggs or hidden surprises found through out the COD Cold War campaign mode. There is a locked room in the safe house that you can access in between some missions. Also in between missions you may try your hand at solving some side missions such as Operation Chaos and Operation Red Circus.
For more information on the Campaign, please visit Call of Duty’s official website.