HOW DO I GET MORE MAPS FOR HALO 3 MATCHMAKING?

they are bigger maps so try social big team

Which map you play on depends on which lobby you enter. (Team slayer, Lone Wolf, etc.) Some of the bigger maps like Vallhalla and Sandtrap you will get more often when playing Big Team. You will get smaller maps by playing games like Lone Wolf. It says in the Lobby description the recommended players for each one. (2-8 players, 2-4 players, 6-8 players, etc.) The maps also say the recommended players. So just try out different lobbies and you should get a better idea of which maps you get. =)

the way social slayer works, is that it swimming pools in ordinary terms the maps that all and sundry your matched with has, and then selections a sort of at random. If one man or woman does not have a map %., that map %. isn't in that random determination. in case you go with to play on the recent maps, you are able to create a custom game and invite human beings out of your gamers record, or your friends, and choose however map and gametype you go with. or you should play a various playlist that demands a minimum of between the map packs to be waiting to play (once you're finding out on a playlist, it is going to specify which map packs are required on the suited area of the demonstrate.)

Try going on the playlist that says "All DLC Required", on those playlist you will play on all map.