Get your ass to the Cosmodrome, on the double.

Destiny The Taken King SLEEPER SIMULANT QUEST FOUND! "The First Firewall" Watch on YouTube

Still wondering what the Sleeper Simulant is? Get your ass to the Cosmodrome on Earth and you'll find a quest called The First Firewall.

This begins the quest for the Sleeper Simulant, a new exotic weapon that goes in your heavy slot. We're not entirely sure how powerful it is yet, but our man Arekkz Gaming is on the case, and he's working through the quest now.

Curious Transceiver Codes

Once you've completed The First Firewall quest you'll be given The Curious Transceiver. You'll need to input a series of codes, so follow the instructions in the video below.

Destiny The Taken King Sleeper Simulant CURIOUS TRANSCEIVER CODES Watch on YouTube

Once you've entered the codes correctly you'll be given a new quest, asking you to speed run Cayde's tower in under four minutes.

Ikelos Fusion Core

Destiny Sleeper Simulant How To Repair The IKELOS FUSION CORE | Destiny The Taken King Watch on YouTube

Once you've completed the four minute run you'll be given the Ikelos Fusion Core. You now have to repair the core, and this requires that you complete The Archive mission on Venus.

After that, dismantle a heavy weapon and then complete the Warsat defense Public Events on Earth, the Moon and Mars. You can now hand the Core in to Banshee.