If you play Halo 5: Guardians before November 6, you'll get an armour set
Playing Halo 5: Guardians before November 6 this year gets you some exclusive new gear for your trouble.
Microsoft hid a something at the end of today's Halo 5: Guardians launch trailer. That is a bonus armour set for those who play the game before November 7.
It's the Teishen Raikou armour set, which you can see below.
While you're at it, if you head over to this website, and watch all videos for both Chief and Locke, you'll be given a key you can redeem to earn a promotional REQ bundle.
Halo 5: Guardians is out October 27 on Xbox One.