Richtofen's Grand Scheme

Richtofen's Grand Scheme is an easter egg on the zombie map Moon. It must be completed in order to obtain the Cryogenic Slumber Party and Big Bang Theory achievements/trophy.

Requirements
Minimum of two players must be in the party. Solo works for steps one through seven. To complete the whole easter egg, the host must have the achievements: Ensemble Cast and Time Travel Will Tell (Note: Multiple sources confirm that these two easter eggs do NOT need to be completed prior to attempting this achievement.) and the weapons/devices listed below. If any player has an achievement, Richtofen should start with a gold circular object at the bottom of his screen. All of the following steps don't have to follow the order in which they are listed:


 * QEDs
 * Gersch Devices
 * Wave Gun
 * Hacker

Step 1
Outside of the starting room on the Olympia's side are four computer terminals lined up near a cliff. Each computer represents a color (going from left to right): red, green, blue, and yellow. (Note: The power MUST be switched on to complete this step.) When the step is started, all of the computers will flash one color. The player must press the use button on the computer with that color. The computers will flash again, this time with two colors, and the player will once again have to match them. This step will continue until all of the computers flash green and a message is heard. If the player messes up, the step is restarted.

Step 2
Proceed to the second floor of the laboratory. On a wall to the left of the stairs leading to the third floor laboratory, there will be four dim switches lined up next to each other. One of these must be hacked for 500 points. After doing so, the player will have to search all 3 floors of the laboratory for four white panel boxes with bright green lights.A total of 7 panels is spread between the three floors, two on the top floor, two on the second, and three on the third. The player must hack all 4 lit panels within 60 seconds or the player will have to hack one of the red buttons again to restart the process, ultimately costing the player another 500 points for each failed attempt. Each of these lit panels makes a buzzing sound that increases in volume as a player reaches it. Once the player has successfully hacked four green light panels the player must head back to the four lined up Red Buttons, the player(s) needs to press all four of them rapidly. It is easiest to just go from left to right or vice versa rapidly pressing the 'use/action' button.

When the player is successful, they will all pulsate red, and the various buttons around them will flash as well. Additionally, the center of the Vril Interface on the front of the pyramid will now be indented.

Step 3
The player must then let excavator Pi breach tunnel 6. Immediately after, take the hacker back to the spawn area, and hack the excavator terminal. Once the player returns to Tunnel 6, they will find the Vril Sphere (the characters refer to it as the egg but in truth it is a Vril Device) lying on the ground near the M16. The Vril Sphere must be moved into the center of the Vril Interface on the pyramid, or M.P.D. The Sphere must be knifed or shot to get it moving. Once knifed, it will begin to float towards a satellite dish on top of the spawn. If the egg gets stuck, simply knife it again or shoot it, and remember to open doors for it.

After it reaches the dish, it must be shot with the Wave Gun to have it fall down and travel towards tunnel 11. This is the only part of the easter egg where the Wave Gun is needed. Eventually the Sphere will get stuck in a tight corner in the ceiling, just above a barrier adjacent to the Stamin-Up perk machine. To get it out, either throw a grenade, or shoot any projectiles that induce splash damage (such as Ray Gun shots, although it can be freed with bullets if shot from the right angle). Then it will merge with the plate in front of the pyramid and a glass canister will rise from the floor close to the pyramid's corner.

Step 4
A cylindrical container will rise in the front right corner (if the player is in front of the plate) of the Pyramid, the player must kill 25 zombies near this tube and have their souls sucked into the tube (the range is very short). Zombies that are killed within range will have a red stream of dust emit out and into the ceiling. Zombies killed via Nukes will count. When the tube is full it will make a sound, the player then pulls a switch that looks like the power switch on the left wall. The pyramid will open revealing Samantha Maxis and rewarding everyone with a 90-second Death Machine.

Step 5
Go back to Area 51, and look to the right side of the teleporter. The player will see a beam structure with some hexagonal-shaped plates stored on it. Throw a grenade to get the plates down (the character will mention the loose plates if done correctly) and then throw a Gersch Device. If done correctly the plates should be on the teleporter with the player, and the player should teleport back.

Step 6
The player should see the plates near the Quick Revive in the spawn room. The player must throw a QED on them, so that they move to the right side of the room, and stand upright in two brackets on a small machine next to a computer.

Step 7
Now the player has to look around the labs for a lead wire. It is long, curved, and silver, and is located on any floor of the labs. It may be on the ground, against a wall or crate, or inside any desk where the Hacker may spawn. This can be found at any point before this step as well. Also, it can spawn outside on the Moon near the entrance of the teleporter or by the crates to the right of the door leading outside. It can also spawn in the starting room by the excavator switch. Although, these three locations are rare.

Step 8
Return to the spawn building, and locate the computer that the plates have moved to. Place the Vril Generator between the plates, and connect the lead wire between the two pieces of equipment. Have the person playing as Richtofen repeatedly use the action button on the computer to the left of the plates. The player will know it is working when they hear the sounds of computer keys being tapped. Continue pressing the action button until a voiceover is heard; listen to this voiceover until it is done. The player will know when he/she is done after the computer screen goes red, green, red then green again. The player will know the step is complete when the Vril Generator begins to glow brightly. Now retrieve the Vril Generator. (On the PS3 version, there is a glitch, if there is no gravity in the receiving area, sometimes you will not be able to complete this part of the easter egg.

Step 9
Go back to the open pyramid. Four tubes will appear, and the player must kill now 25 zombies by each. After all the tubes have been filled, put the Vril Generator in the slot in front of the pyramid. As with step 4, you will know you are filling the tubes when red souls fly out of zombies. However, Samantha will also begin to scream and violently shake the screen as the tubes fill. Samantha and Richtofen should switch souls after the Vril Generator is inserted, which will then give the person playing as Richtofen all 8 perks. At this point, the Vril Generator cannot be removed from the Vril Interface on the M.P.D.

Step 10
Throw a QED directly onto the Vril Interface symbol on the front of the Pyramid in the power room to make the Vril Sphere move again. It should launch over to the Simon Says machine. Use a Gersch Device to move the Sphere from the terminals into the rocket propulsion system.

Step 11
Play the electronic color-game three times (one for each rocket). Unlike the first time, the game begins by showing the player the first three colors, then four, and five on the last time around. This makes it much more difficult to complete. If the player does finish it correctly, Maxis will say something and then countdown to launch the rockets at the earth. Once the rockets hit Earth (approximately 30 seconds after the launch) and Maxis starts to laugh, the easter egg is now complete and each player will now have 8 perks until the end of the game.

(Note: Steps 10 and 11 are interchangeable and may be done in any order.)

Video Walkthrough
Video:Moon Easter Egg Full Tutorial Cryogenic Slumber Party and The Big Bang Theory Achievements

Awards

 * After the player completes step 5, the players will all receive 90-second Death Machines.
 * Richtofen receives all eight perks after step 9, the rest of the players get them after step 10 or 11 (depending on which you did last). These perks will last until the game's end and cannot be lost in anway.
 * Two gamer pictures (Xbox 360 Only), one of Samantha and another of a Teddy Bear holding a Bowie Knife.

Achievements/Trophies
Cryogenic Slumber Party (75 / Silver Trophy ) - Awarded for completing step 5.

Big Bang Theory (100 ) - Awarded for completing the easter egg entirely.

Trivia

 * If someone is standing on the pyramid when the Sphere lands on it, the Sphere will miss and become stuck, essentially ending the Easter Egg.
 * This Easter Egg cannot be completed entirely on Solo, but Cryogenic Slumber Party can be achieved.
 * After the Easter Egg has been completed, Area 51 has a different appearance due to the Earth being hit by the missiles. Oddly, Area 51's appearance won't change if the players are in it when the missiles hit Earth, but will change the next time they return. In addition, if one runs as far forward on the left side after teleporting as they can and turn around, above and to the right of the building with the teleporter in it, they can see the Earth as if from the Moon.
 * The Demonic Announcer sounds like Richtofen after completion of the easter egg.
 * After Richtofen and Samantha switch souls, the eyes of all the zombies become blue.
 * Following Richtofen switching souls with Samantha, the Fire Sale jingle will change to a different tune.
 * In case Richtofen turned on him, Maxis made the plan so that he wouldn't be able to gain control of all the zombies.
 * There is a known glitch if the player takes his space helmet off upon receiving the 90-second Death Machine after completing step 4, the player will not be able to use the Death Machine or any weapons in their inventory for 90 seconds. The player can still knife, however.