- DizRupT
- |
- Exalted Legendary Member
Each new Halo game uses a fresh proprietary game engine. Halo: CE used the Halo engine, Halo 2 used the Halo 2 engine and Halo 3 uses the Halo 3 engine (yes Bungie is creative in naming their game engines).
Naming the game Halo: ODST, would imply it is a fresh new game (like Halo: Reach), however, it is not a fresh new game, as it runs off the Halo 3 engine, uses Halo 3 weapons, vehicles and AI, with just a few new features and updated graphics.
Naming the game Halo 2: ODST would imply it's running of the Halo 2 engine, which is of course outdated.