Apprently some of you don't know what an Game ENGINE is.
A game engine is the bare bones of the game, what it runs on, it ahndles graphics sounds, sometime physics.
Just because it is on the Reach engine does not me it will be exactly like Reach. They could code it to play almost identical to Halo 3, it would still be the 'reach' engine. The engine doesn't handle how the weapons handle, it the code they apply to it does.
I hate to used "COD" as an example. But COD runs on a (heavily) modified Quake 3 Engine. Does it play like Quake 3 at all? No. Also 2 games of the Star Wars Jedi Knight series were on the Quake 3 engine and it had Lightsabers. I don't remember Quake 3 having swords, because the makers of the game added them.
The engine does not determin the game. The people making the game determin the game.
