A day after making Halo 3 available to Xbox 360 owners as a downloadable game, Microsoft let Kotaku know that while loading times may be impacted in this version, gameplay should run as well as it always did.
Recall that Halo 3 creators Bungie Studios had advised gamers to play Halo 3 from a game disc, though they backed off that caution yesterday in response to inquiry from Kotaku about playing the now-downloadable game from a harddrive.
https://lastchance.cc/halo-3-now-downloadable-to-xbox-360-but-with-an-asteri-5520693%3C/a%3E%3C/p%3E
It sounds like the difference in experience will be minor. Halo 3 downloaders, let us know.