In order to complete this easter egg, you need to have recieved the 2 previous trophies/achievements from "Call Of The Dead" and "shangri-La" which are "Ensemble Cast" and "Time Travel Will Tell." It is needed to complete the easter egg, however, you can complete it up to the part where Samantha comes out of the Pyramid and everyone recieves a 90-second Death machine.
Weapons needed; Bowie Knife, Zap guns, Quantum bombs and Gursch devices.
If these throphies/achievements are met, you will notice that Ricthofen will spawn with a icon on the bottom of his screen: it's infact a Vrill Generator. You'll need this later. Only one person actualy needs to trophies/achievements in order for Richtofen to spawn with the Vrill Generator.
You'll also need to Excavator "Pi" to have breached into Tunnel 6, it doesn't matter when it breaches, as long as it does it once; the excavator breaches random tunnels at random times, the only way to make sure that tunnel 6 gets breached is to keep playing and listening for someone to say that tunnel 6 has been breached.
Step 1) when the power has been turned on, you'll need to play a game of "Samantha says" on the four computers in the outside area with no gravity, near the quick revive.
Step 2) Hack one of the four buttons in the lab, this requires you to have found the hacking device that lays around various tables. This will turn on four computers in the labs (the light turns green over the good ones). Use the hacker device on them.
Step 3) Once the computers have been hacked, four buttons will appear on the wall and must be pressed within 2-3 seconds. If done correctly, they will remain lit.
- These steps open the pyramid's front engraving (the circle). You'll need this later in the easter egg.
Step 4) when tunnel 6 has been breached, someone has to hack the proper terminal from the recieving area so that the digger leaves.
Step 5) Go back to tunnel 6 and a black egg has appeared, near the M16 on the wall; knife it and you'll see it moving around. You'll have to follow it, and open any doors if it gets stucked between them, remember to keep knifing it untill it flies up into a dish on top of the spatial base.
Step 6) Someone has to use the Wave gun (combined zap gun) on the tip of the dish, making the egg move again.
Step 7) follow the egg through tunnel 11 untill it hides into some metal railings. You can either shoot it from the wall next to Stamin-Up, or throw a grenade at it.
Step 8) Keep moving it until it reaches the pyramid in the power room. It will fit into the hole you just opened.
Step 9) A tubulir container will rise from the right side of the pyramid; it needs be filled with around 25 zombie souls, to do this, simply kill zombies close to the container.
Step 10) Once it's filled, you should hear hear a sound. Activate the switch next to the container, which opens the pyramid and reveal a pleasent suprise, Samantha.
------ At this point you'll recieve the 90-second death machine, but need a Vrill Generator to continue. -----
step 11) Head back to the starting area. To the right stand a beam structure with some plates stored on it. Throw a grenade and the plates will fall off.
Step 12) Have someone throw a Gerch device behind the crates, right where the plates have fallen. If done properly, the plates should now be on the teleporter pad.
Step 13) Go back to the moon. The plates should now be right infront of quick revive. Have someone use a quantum bomb on them. If done properly, they should now be right next to a computer in a corner of the same room.
Step 14) Look in the labs for a lead pipe. It's often hidden in one of the counters where the hacker spawns. Grab it and plug it into the machine back in the recieving area. Have Richtofen put the Verill Generator in between the plates.
Step 15) Have Richtofen Repeatedly use mash the "use" button on the computer keyboard for a few minutes. Wait untill the voice-over ends, and the computer screen should STAY green.
Step 16) The Vrill Generator should now be powered up and shiny. Grab it and head back to the pyramid.
Step 17) Get near the the round engraving and put the Vrill Generator on it. tehre will be 4 tubular containers rising up from the pyramid.
Step 18) Fill the containers up again by killing 25 zombies, and the same sound should play as last time once the container is full.
Step 19) Active the switch again and the containers should be drained. Have Richtofen pick up the Vrill Generator and he should now have Perma-Perks.
Step 20) Go back to the "Samantha says" machine and play 3 increasingly harder rounds.
Step 21) Head back to the power room and have someone use a quantum bomb on the engraving to move the egg again.
Step 22) The egg will fly back to the "Samantha says" machine, use a Gersch device on it.
----------- You'll see the egg teleport and three rockets outside the play area and head towards Earth. Everyone will now have All Perma-Perks. -----------