From Destinypedia, the Destiny wiki
Species:
Fallen
Type:
Vandal
House:
House of Dusk
Gender:
Various
Mission:
Patrol Nessus
Weapon(s):
Shrapnel Launcher
Abilities:
Rapid Movement Fallen Melee
Fallen Extractors are a more powerful Vandal variant that appear in the Nessus Public Event Ether Harvest.