McFarlane Toys/Halo Universe
From Halopedia, the Halo wiki
The Halo Universe series is a continuation and rebranding of McFarlane Toys' Halo: Anniversary Edition Series. It continues to bring fans classic, fan-favorite characters from earlier Halo games and "expanded universe" sources. It was to continue the "build-a-figure" feature of the Anniversary line, but it was eventually not featured as McFarlane announced that some figures were canceled while others had been added.
ODST Drop Pod With The Rookie
Halo 3 Campaign Co-Op
This set includes the four characters from the Halo 3 co-op mode: the Master Chief, the Arbiter, N’tho ‘Sraom and Usze ‘Taham. The included weapons are the following: an Assault Rifle, a Battle Rifle, three Covenant Carbines, three Okarda'phaa-pattern plasma rifles and a Plasma Pistol. It was released in October 2012.
Halo Legends: The Package
This set includes three figures from The Package: the Master Chief, Frederic-104 and Kelly-087. It includes an Assault Rifle, an M90 Shotgun, a Spartan Laser and finally two combat knives for Fred. It was released in January 2013.
The only figure which was released as announced was the ODST Drop Pod figure with the Rookie. The series originally featured Fred-104 and Usze 'Taham as stand-alone figures, but they were repurposed as boxed sets including other figures. However, several figures have been canceled and were not featured at all: Romeo from Halo 3: ODST, an Elite Commando from Halo 3, a Brute Captain Major also from Halo 3, and a multiplayer Spartan which was not precised. There was also a "build-a-figure", but its nature was not revealed and it was canceled. The series was originally known as "Halo Universe Series 1", but it was eventually redubbed simply as "Halo Universe", suggesting that the potential Series 2 was abandoned by McFarlane.