The Season Three Reloaded update has added a ton of new content to Zombies in Call of Duty: Modern Warfare 3 like an all-new Dark Aether Rift and main story mission, but there are other minor new easter eggs hidden throughout the map as well.One such easter egg involves a purple triangle in the center of the map. Completing a brief rune puzzle will reward you with 2,000 Essence, a Flawless Aetherium Crystal, and a Legendary Aether Tool, essentially giving you an endgame Zombies kit for free.How to Do the Purple Triangle Easter Egg in MW3 ZombiesTo start the purple triangle easter egg, head to Old Town in the center of the map. Make your way to the Dark Aether Rift where the Union story mission usually begins, but don’t enter. Instead, search around the area for glowing purple runes attached to nearby buildings surrounding the courtyard. There’s a glowing purple triangle on the floor that points to each of the runes.Screenshot: PC InvasionAfter you shoot …