Do items from MCC earned after beta transfer?

I was wondering if I watch Nightfall after the Halo 5 beta, I would still get the Nightfall armor in the game, or if I get the Legend achievement in the MCC after the beta ends I’d earn Helioskrill in the full game even though I earned the Achivement after the beta?

yes

> 2533274795660102;2:
> yes

I’ve searched and haven’t found a source, could I have a link?

Seriously, I’ve found a source for items transferring before or during the beta, but not after.