I have a problem which may be common (apologies if so) but I haven't found anything about it yet so hopefully here is a good place to try.
Basically when I load up Reach Multiplayer (after having not played for quite a while) I found that I can only play two competitive playlists, I have both the Defiant and Noble map packs but not the Anniversary map pack.
When I load any of the 'Competitive' playlists, (e.g. Team Slayer, Big Team Battle, Living Dead, SWAT and so on) I get the message "Players do not have the recommended downloadable content maps". However it is my understanding that I don't need the Anniversary map pack in order to play these playlists. If anyone knows why this might be I'd greatly appreciate it, and apologies if its blindingly obvious and I'm just being a fool.
I have tried: re-downloading the map packs, clearing the cache, installing the game onto my hard-drive.
I can play custom games on Defiant and Noble maps and have played Invasion on 'Breakpoint' which is part of Noble, but the game seems to think I don't have them for other playlists.
I have previously played Halo: Combat Evolved - Anniversary on my xbox but only as a netflix rental, I have since deleted the game data for that game, would this somehow affect it? Also this same thing is happening with my friend regardless of who's xbox or profile is being used.
Invasion and Action Sack have gotten pretty stale so any help is greatly appreciated.