i downloaded the mythic map pack on halo 3 but now i dnt know how to use it?

[Jason]

and how exactly do you vote on a map because before a game it says press x to veto but how do i view a map before i vote?????
for every match i search for it says i need downloadable content

 

[Richard]

They're just in Matchmaking, Custom Games, and Forge now. Just do what you normally do.

As for vetoing, you should see your current map before vetoing and if yo don't like it, press X.

EDIT:
Have you downloaded the Heroic and Legendary map packs? Also Cold Storage?

 

[chris]

To view it, go to Forge and just mess around in it.

To play it, make a custom game or go to DLC specific playlists like Social Bigteam of Action sack. If you dont like that certain map, press X, the blue button, and you will veto it, if the majority of people veto, a new game type and map will be selected.

 

[Joe]

It's a download game content, you only view it in the game...

What you do is go into Custom Games and then you can load up the maps for your disc to read them by just selecting the Map you want. It should just load automatically. Then you can go into Match Making or just a Custom/Forge game to explore the new maps. Maybe get a skull or three...

As for the Vetoing, you just press "X" to the map you dislike. It's ashamed but you can't choose the map you want. Other wise it would take a while before everybody is happy.


Also yeah you can't play match making in the Ranked playlist until you have all the DLC. The Heroic and Cold Storage Map pack is for free so you can download that. The Legendary map pack is 800 MPs.