didn't received Nightfall Set

Games Halo 5: Guardians
1

I Watched the entire Halo: Nightfall series and didn’t received the Halo: Nightfall set.
I gained the serie by buying Halo 5.

So, how do i win the Nightfall Set?

2

I’m not 100% on this, but the Nightfall promotion may have ended now. The armour itself is in the general REQ pool now though so you can get it from opening Gold packs