yes
Yes it does its called the campaign.
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.
nope only 2 players
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
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.
Yes, but only on co-op there is no vs. mode, however the Halo 3 ODST case includes 2 discs one including Halo3 ODST and the other being the complete Halo 3 multi-player experience.
yes fire fight mode is addicting! somwhat dissapointing
Yes. How- Beat game on legendary.