Posted by: Phoenix1330
Posted by: Nicks1171
As expansion packs consist solely of additional content, most expansion packs require the original game in order to play.
YOU DO NOT NEED HALO 3 TO PLAY ODST
He's right, Halo 3: ODST does not consist solely of additional content and doesnt require the original game to play it(since Halo 3: ODST IS the original game). So you just proved that your wrong.