Yes, but only if you download it from the market place unless your talking on the PC then I don't know.
If you can rip it as an .iso image.
You can't. The multiplayer disc is the only one that allows you to connect to the network. Campaign disc is purely the campaign.
You can't do it on the actual ODST disc, but if you mean on the multiplayer disc occasionally on weekends a living dead playlist comes out on multiplayer. Alternitavely you can create a custom map with an infection gametype to host private matches to play it.
yes and no, you only need 1 disc to do multiplayer, however you also need 1 disc to do singleplayer, you can do it without the disc by using a no cd crack but they are illegal
Yes you can play both Halo: CE and Halo 2 multiplayer on PC.
go to multiplayer
on an xbox press multiplayer
yes
yes you can be a arbiter in only campaign multiplayer
You change the play list in Multiplayer.
Nothing. The multiplayer map-pack is an add-on. Which means you can't play the Multiplayer map pack without Halo 2. The only thing that is different is the maps, that get downloaded to your Xbox when you boot up the multiplayer map pack. The models, textures, gameplay is all exactly the same.
No you don't , Halo :ODST is a stand alone game that has 2 disks : 1- ODST story mood and a multiplayer mood called firefight 2-A disk that has all the Halo 3 multiplayer maps that you can play WITHOUT the need to have the original Halo 3
I don't play Halo 2 on PC but my guess is that if it has campaign or story mode, you can play alone. If you wanna play multiplayer with other players, you can't unless you do local matches.