From Destinypedia, the Destiny wiki
The Warrior's Enforcers are a group of Captains that belong to the House of Salvation. They are tasked by Phylaks, the Warrior to protect her or her soldiers. They can be seen scouting around the Europan Wastelands, hoping to find something for their commander. These chosen soldiers have a medium amount of cream-colored armor over their baggy white undersuits, maintaining the full fluffy collar of a standard captain but without their iconic cape. Thick blue hoses run down their upper left arm, responsible for their use of Stasis.
List of appearances