Get 15 kills with a Secondary Weapon.
Earn 5 CQC Medals in a single match.
Complete any Campaign Mission on Heroic or higher difficulty with the Famine, Luck and Thunderstorm skulls.
Complete any Campaign Mission on Heroic or higher difficulty with the Famine skull.
Kill 50 Elites.
Kill 20 Hunters.
Kill 450 Players.
Earn 40 Multikill medals.
Win 80 matchmaking War Games matches.
The Cortana one was featured on Halo Waypoint, still hoping to see my Master Chief one up as well.
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