At the moment, there is known to be two ways doing this Easter Egg, there is the one way of listening to Dr. Maxis that can be heard only when the power on the map is turned off. This method is shown below. The other way is by listening to Richtofen while the power is turned on, the only character that can hear Richtofen is Samuel. This method follows the first steps in which the NAV Table has to be built as well as the Thrustodyne Aeronautics Model 23 which Richtofen makes comments of having to be built after the power is turned on. Your progress in the Easter Egg will save to your profile so if you are playing online, you will not have to do the Easter Egg steps you have already completed in fresh games.
Note: The first three steps of the Easter Egg are the same for whichever side of the Easter Egg you complete.
Step One: Every player must acquire a Turbine which the pieces required to build the Turbine can be found in the Bus Depot.
Step Two: The Power Station must be accessed by getting off the bus at the fourth stop and opening the door of a shed where a secret entrance can be found which the players will drop down and enter the Power Station.
Step Three: There are three parts to make the switch to turn on the power. One is a circuit panel, another is a zombie arm, and the last is the lever. They are all scattered in this area, but they should not be too hard to find. Collect these parts and assemble a power switch at the blueprint. Then, turn on the power.
this dude only stole his info from the COD wiki, you know?
"The CoD franchise is the McDonalds of video games, its widely known to be bad but millions still eat it up" - therickmu25 - 11/26/12