Halo 5: Guardians - How to Unlock Multiplayer Armor Sets, Helioskrill Armor

The next iteration of Master Chief’s story is upon us, and it’s time to start looking forward to the next generation of Halo multiplayer. This time around 343 Industries has quite a few armor sets lined up for players, and this guide will teach you how to unlock those sets so you can use them to show off your prowess in the game’s multiplayer modes.
Helioskrill Armor Set
The first set of armor that many will be trying to unlock is the Helioskrill Armor. This special armor, which was designed by Sanghelli, is bred for warriors, and bloody combat. To unlock this armor set you’ll need to complete the “Legend” achievement in Halo: Master Chief Collection, which can be acquired by completing all the MCC campaigns on the Legendary difficulty.
Nightfall Armor
Halo Nightfall might not have been the best Halo production ever, but the armor featured in the series is one of the most iconic of the Halo world. To unlock this armor you’ll simply need to head to the Halo channel and watch all five episodes of the Halo: Nightfall series.
Mark VI Armor
To earn this iconic piece of armor, made famous by Halo 3’s campaign, you’ll need to earn the “Cairo Station” achievement in Halo: Master Chief Collection. This achievement can be acquired by completing the Cairo Station mission in Halo 2.
We'll be adding more armor unlock as we find them, so be sure to return to this article often for updated information and tips.