press start, go to settings, appearence. i hope this can help you. :D
The Arbiter does not make an appearance in Halo 3: ODST.
You cant. Its not a game option.
Start from beginning to end
Go to start>appearance>species>elite.
Press the circle in the middle of your controller. Press the left or right button 1-2 times and go down until you find the marketplace option. Go there and search for the game: Halo 3. Press on the option: game ad-ons and you will find it there. Then you can download it. By the way, ITS FREE! I Hope This Helps - Henry
Halo reach is a improved game than Halo 3 ODST, so better graphics, game play etc. My personal option, yes, Halo Reach is better than Halo 3 ODST.
If your talking about the Gamertags that say a11 or something then just go to appearance and it should be there with the Halo emblem and stuff.
Please visit the Gamespot game guide for Halo 3. There you will find all the locations of the Halo 3 skulls.
Sorry there arn't any, The only skulls are in "Halo 3" Which are used in "Halo 3 O.D.S.T."
You can't. They took off the "Indestructible Vehicles" option that they used to have in halo 3. :[
find out for your self
find the skulls