Yes it does its called the campaign.
yes
Yes, there will be Forge mode in Halo 3: ODST... but on the other hand there is two discs so there might not be in the halo ODST disc.:)
i dont think you ever can without a mod atleast in story mode
Forge.
To beat the campaign mode, play through all the levels, follow the story's instructions, and don't die.
Yes and no. You do not need Halo 3 to play ODST. And you do not need to have played Halo 3 to play ODST. It is an expansion of the Halo storyline. I happens concurrently. No its not this is not an expansion of the story this is just another part of the story.... so basically whats happening in the game halo 3 is happening at the same time as whats happening in halo 3 odst.... They are just two different battle fields. ODST are not Spartans either they are like elite marines Halo 3 odst is between halo 2 and halo 3.
No, It does not. Halo ODST is the story of a squad in New Mombasa before/during the events of Halo 3
No Halo 4 will not be coming out with a new story line but their is Halo ODST and Halo Reach and If you Buy Halo ODST you will be able to try halo Reach which comes out in 2010.
you can play as Sgt. Johnson in fire fight mode.
no it will not it will have firefight like a halo version of gears of war 2 horde mode
After Halo 3 was finished by many gamers Bungie began making new games to go on the side of the Halo story line. Halo 3 ODST and Halo Wars were both being developed at the same time but Halo ODST was released first
No. ODST doesn't have multiplayer, excluding firefight (which can't be forged, and not even for matchmaking) and co-op campaign. But ODST does come with a Halo 3 multiplayer disc, which includes all of the original multiplayer maps and the DLC maps. That disc also includes forge mode.