Yes you can you have to change your language on the Dashboard, then everything will be in that language.
Yes a little
As you progress in the Halo Reach campaign, the background changes. You can't change it though, that's the problem.
go .... yourself in the menu
Yes, you can mod campaign mod on the Halo trial.
Yes Halo ODST's campaign is definatly going to be longer than the one in halo 3, the long campaign was one of bungies main objectives in the making of ODSTAnother answerer:No Halo 3 ODST does not have a longer campaign than Halo 3, it is only an expansion to Halo 3
you do apparently have an illegal version of Halo. get the legal version of halo to play the campaign.
no halo "campaign" is a single player game
in campaign you cant but in multiplayer and online you can. go to options and edit your person
You get the Halo 3 ODST campaign and Halo 3 multiplayer. Nothing else.
When in the campaign menu press Y to change your network settings to local Xbox instead of Xbox Live.
You can change you're language in the opinions menu.
Yes