I have the legend achievement… I’d really like my armor now guys.
You probably glitched a mission, i had to re-do the whole of halo 2 to get it.
EDIT: I did beat every mission on legendary, says waypoint. This was more directed at 343 specifically since I’ve read mixed responses to people experiencing the same thing. Some people said it took weeks to months to unlock, some people said it was instant, other people say they never got theirs.