The In Amber Clad

In the opening cut-scene while dropping into the city of New Mombasa, if you look close enough you can see a small ship headed for the right side of the covenant carrier. That is the In Amber Clad, a UNSC Frigate that followed Regrets carrier through slipspace to delta halo. Onboard was the master chief, Spartan 117. This is known to be the closest view of anything involving the master chief from Halo 2 to Halo 3: ODST.