Memories of reach pack question.

so, in memories of reach, I just saw the pack came back. Is it a 100% you’ll get some form of armor piece from the pack or not?

If you don’t already have the armor given by the pack. Check YouTube.

Each pack has a description underneath it, that should explain the content and what you get.
Im pretty sure that if you don’t have all the unlocks from that pack already then you should receive armour from opening the pack.

If you want you can research the pack on YouTube. See people opening them etc.