Yes, the ship appears to have been retconned for Halo 4. In Halo 3 it was a Charon-class frigate which was a fairly distinctive design but in Halo 4 the ship has changed, it has a much larger more streamlined central design with the hangar and engines moved into the main superstructure rather than hanging off it. It also goes from a derelict wreck to mostly functional, no explanation is given for the new Forward Unto Dawn.
John
John
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