Master chief collection cairo station

i recently went back to complete cairo station to get the mark VI gen 1 scared but never got the armour was i too late or is it a glitch

Its a glitch most of the mcc achievement that tie to halo 5 armour is currently bugged, I’ve been waiting for my helioskrill set for a week

Yeah it’s a glitch has been happening for a while especially with Helioskrill.