Best done at the end of a round while having one person hold the last zombie to avoid allowing the Templar zombies to shut down any generators. All it would cost you is 200 points (+200 for each additional player you have to 800 points for 4 players) points to power up all six generators as you receive your points back after successfully powering up a generator. In order to get credit for this achievement you do need to be a part of the process of powering up the generators.
If the Templars come and shut down one of the generators you must restart.
Generator 1- Inside of the spawn building.
Generator 2- Outside of the bunker that houses a mystery box and the blue CD for the ice staff. The door to get to this generator is near generator 1, or when looking toward the rest of the map, is the right door.
Generator 3- Located through the left door out of spawn, generator three also houses a mystery box, and in the area where the robot can step is a Speed Cola perk machine.
Generator 4- Found in the large middle area of the map, generator four would be to the left when coming out of the workshop/spawn area and houses a mystery box as well as Juggernog.
Generator 5- Is on the opposite side of the middle area when comparing it to generator 4. Generator 4 contains Stamin Up as well as a mystery box.
Generator 6- The final generator is located on the far side of the map behind the church. This final generator contains another challenge box as well as a mystery box.