Extractor Marines

Extractor Marines are a specialised type of UNSC Marine employed by the UNSC.

Description
Extractor Marines are equipped with a form of backpack and what appear to be modified ARC-920 railguns. These weapons are seemingly capable of "siphoning" the health out of the target of the weapon and healing the marines wielding them.

Gameplay
Extractor Marines appear in the Blitz multiplayer mode of Halo Wars 2 as a playable card for any UNSC leader.
 * Rarity: Uncommon
 * Cost to deploy: 50
 * Y-Ability: Grenade Throw: Tosses a grenade at an enemy unit to deliver explosive damage.
 * Siphon: This unit has special weaponry that steals health from its enemies equal to the damage dealt.

The Extractor Marines are classed as core infantry, and performs well against infantry, vehicles and aircraft.

Production notes
While the Extractor Marines and the weapons they wield are canonical designs with the context of Halo, their function as depicted within the gameplay of Halo Wars 2 is not. In a Twitter thread, writer Jeff Easterling commented that it was "odd territory getting into draining "life force" no? Lol.", and that "Doesn't mean the weapons won't be canon necessarily, but canonical functionality could change :)", reaffirming that the weapons do not in-canon "but doesn't "steal their health and give it to you"".