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Deathwing Command Squad
From Warhammer 40k - Lexicanum

Deathwing Command Squad[1]
Deathwing Command Squads are specialized formations within the Dark Angels Deathwing.[1]
The highest-ranking members of the Inner Circle are sometimes accompanied by a Command Squad from the 1st Company. These warriors consist of some of the most hardened veterans within the Deathwing and are equipped with a variety of heavy weapons such as Plasma Cannons and Halberds of Caliban. Specialist members of the Deathwing, such as Apothecaries and Company Champions, are also known to make up Deathwing Command Squads.[1]
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