Two to three days after launch, the last of the MCC armor pieces unlocked for me. I can select all of these pieces through the Web interface, and they appear on my in-game Spartan if I do so. None of it, however, can be equipped via the in-game customization interface, as the corresponding REQ cards are not unlocked. Is anybody with Nightfall, Mark VI, Mark VI Scarred, or Helioskrill armor from MCC (rather than random REQs) able to select any of these items on the in-game customization screen?
Ive been having the same issuses but have found that if i go to “Customize Spartan” you can see and select items but NOT in “my collection”. try that -Yoink!- out. GL