Full Campaign Playlist Challenge not tracking

So I’m going for the Seasonal challenges to complete 3 full campaign playlists; I completed halo reach heroic solo and legendary co-op playlists, and then I finished the halo 3 legendary playlist in co-op and I didn’t get progress for the three different playlists and I didn’t get the one specifically for completing the Halo 3 playlist

There are two campaign playlist challenges. The elite company and the voi Polloi’s and when i ran through H3 on co-op I got the elite company but it didn’t count for the voi polloi challenge. The voi polloi only seems to count if you do it solo even though it doesn’t specify.

I just did the Halo 3 Legendary Playlist solo and did not get the challenge. :-/

Did you skip any cut scenes? If so that can cause some levels not to register as complete. Especially the opening and closing scenes.

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> So I’m going for the Seasonal challenges to complete 3 full campaign playlists; I completed halo reach heroic solo and legendary co-op playlists, and then I finished the halo 3 legendary playlist in co-op and I didn’t get progress for the three different playlists and I didn’t get the one specifically for completing the Halo 3 playlist

You can play the short playlists of Halo 3, that’s what I did.

Yup. Played Halo 2 Playlist and it didn’t register. Then did a Halo 3 playlist and that DID register.

So as I understand this right.

You can get the seasonal challenges completed by not ONLY run through the whole Campaign but also the other playlists for the games that count.
Like Halo 3 full campaing but also the vehicles/ big battles playlists for Halo 3 as well?
Because I have ran through ALL Halo games on heroic not long ago, and doing it for another go is… yeah a bit too much