you can still play on maps but they're not the same as halo 1,2,3 or odst halo combat evolved and halo 2 is the only game so far with the same map on the game (blood gulch)except halo2's blood gulch map is updated but the maps can be simmillar to other halo games maps like how the ice map in number 3 is kind of like sidewinder. and on halo reach you can also do forge wich allows you to edit the maps - hope this helps -
as part of the release of Halo Combat Evolved Anniversary a few maps for matchmaking were released for Halo Reach I think the dlc is about 1200 Microsoft points
You can download Anniversary Maps to Halo: Reach but not to Anniversary.
i do belive there will be a forge to make maps like Halo 3 did.
The Halo Reach Beta will include four maps. You can read about them here.
you cant >:(
Yes, you do.
you go to recent maps if its not their then its gone sorry.
Its only the HALO:CE maps
No, only Oddball.
there are three
Go search for them in Xbox Market Place.
you get it as a certain disc at game it has mappack on it