Halo 3 caches stuff to the hdd, but if one isnt present it just doesnt cache anything. It only helps load times, the game doesnt rely on the hdd being present.
I read once where a guy tested Halo 3's loading times on different 360 hdds and found that the larger drives cut loading time almost in half because of the larger cache on the drive itself and faster transfer rate. One would have to assume that no hdd only increases load times even more.
I read once where a guy tested Halo 3's loading times on different 360 hdds and found that the larger drives cut loading time almost in half because of the larger cache on the drive itself and faster transfer rate. One would have to assume that no hdd only increases load times even more.