Convoluted Conclusion

Convoluted Conclusion is an achievement featured in the Zombies map Excavation. It requires players to "break the cycle". It is the map's main easter egg achievement, where it can be achieved in solo or in co-op.

Step 1: The Dig Site
The first step in order to begin the easter egg is to gain access to the interior of the sawmill and reach the center room. A player must now use the MM1 Grenade Launcher and shoot the pile of sawdust in the center of the room, causing it to reveal a hatch. Use the grenade launcher to blow open the hatch, revealing a secret underground tunnel.

Step 2: The Seal
At the end of the tunnel is a door that can only be opened with the use of a special code. Around the tunnel are pictures which show a part of the code in different colors. In order to insert the code, insert each part of the code from top to bottom from the colors of the rainbow (i.e. Red, Orange, Yellow, Green, Blue and Purple) into the door, causing it to sink into the ground, revealing an altar with the Harbinger on it.

Step 3: Powering the Sword
In order to take the sword, the player must kill at least fifty zombies near the altar, causing their souls to be absorbed by the blade. Every ten zombies killed near the blade will cause the symbols on the blade to slowly glow until they are glowing brightly. The player can now pick up the blade for 3000 points.