Halo Nightfall Armor

Games Halo 5: Guardians
1

I watched all the episodes of halo nightfall 2 times and i didn’t get the Nightfall armor.

2

Any way to watch and get the amour with out buying nightfall? I have very amour except nightfall.

3

This is my problem too. I watched them on my phone and on Windows via the Halo Channel app and did not get the armor nor helmet in game.