It appears that Nessus is now home to cryptic Destiny 2 secrets. Here is how to solve the Decorder Protocol puzzle in Nessus and how to access and complete the Enigma Protocol mission in Destiny 2. Table of ContentsHow to use Decoder Protocol and Prismatic circles in Destiny 2How to defeat Argus, Firewall Guardian: All Vex cube locationsHow to start Enigma Protocol in Destiny 2How to complete Enigma Protocol in Destiny 2Charge Radiolite CircuitsDestroy Choral Denial AgentsCollect Encrypted Golden Age dataDefeat Ainigmatos, the Indecipherable Proto-Mind How to use Decoder Protocol and Prismatic circles in Destiny 2Screenshot: PC InvasionBefore we begin our journey, be sure to complete The Final Shape campaign before venturing forward! To start this somewhat cryptic adventure, travel to Nessus and fast travel to The Cistern landing zone. Just a couple of steps north of it you will find a Prismatic circle on the edge of the terrain. Weird, r…