The maps themselves are preset, but you can choose what is in it from guns to scenery to vehicles, using the forge.
haw to make mode maps in halo 3
You cannot make your own maps in Halo: ODST, it doesn't contain forge world. Halo 3, Halo: Reach and Halo 4 all contain forge world.
you can only edit objects on existing maps not make maps to edit go on forge mode.
i do belive there will be a forge to make maps like Halo 3 did.
You need to do forge to create your maps in halo 3
Halo 3 You can make 3d maps in Forge
they make the boarders for maps if you pass them they kill you
Refering to halo 3 and halo reach their is a custom forge game mode, here you can build and shape your very own map creations for both custom and recreational use.
By getting halo 3 odst ( two discs ) first disc halo 3 odst campaign and 2nd disc halo 3 mythic comes with all the halo 3 maps.
You can't. The Mythic Maps our only playable on Halo 3, not Halo Wars.
When on Halo 3 in Pre Game lobby you press start and chose Xbox Marketplace. From there you can download the maps and other Halo 3 content.
Do the same thing on other maps.