- EPIC Zuul
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- Senior Heroic Member
Helping out the 7th column community with reasonable posts since '07.
Halo 3 ODST comes with two separate discs, one is for the campaign, and firefight, and the other is Halo 3 Multiplayer that features forge, theater, matchmaking. So yes you could sell Halo 3, but you wont get much money for it.
PS: If you sell Halo 3 you wont be-able to play Halo 3's original campaign even with the Halo 3 multiplayer disc that comes with ODST.