I just bought the game and it says I Dont have recommended downloadable content maps, how do I download those and which ones are they?
Hi !
You don’t need the Map Packs to play Halo Reach Matchmaking ,
but if you want them , there’s 3 of them :
Noble Map Pack is 800 Microsoft Points with the maps , Tempest , Breakpoint and Anchor 9.
Defiant Map Pack is 800 Microsoft Points with maps , Condemned , Highlands and a Firefight Map , Unearthed.
Anniversary Map Pack is 1200 Microsoft Points 6 Classic Maps from Halo Combat Evolved and Halo 2 , Beaver Creak/Battle Creak , Damnation , Timberland , Headlong , Prisoner , Hang 'Em High and a Firefight Map , Installation 04.
If you wish to download them , you can go into the Custom Game Lobby , go on the Map Selection Screen and choose one of the maps that says ‘‘NEW’’ , it will send you to the buying part where you will have to spend 800/1200 MS Points to buy them.
If this way doesn’t work , go to the Xbox Dashboard , go to Games , Browse Games , go to Add-On , find Halo Reach and the Map Packs should be there !
Hope this helps you and happy gaming ! 
This pop-up should be fricikin deleted.