From Destinypedia, the Destiny wiki
They utilize firearms and strategy to counter their enemy, coordinating with other Hive to destroy their targets. Unlike the lesser Thralls who act with little sense of self-preservation, Acolytes actively utilize cover to avoid incoming fire from enemies. If they survive long enough they become Wizards if female or Knights if Male.
Acolytes are basic enemies that are mostly seen behind cover. They occasionally pop out to fire off some shots at the player, forcing them to retreat. However, they lack in defenses, and as such can easily be killed by small arms fire. The best strategy would be to separate an Acolyte from their piece of cover and leave them exposed to incoming damage. This can be done by tossing a grenade in their general direction to flush them out, followed by shooting them with your primary weapon or rushing forward for a melee attack.
Acolytes gain the ability to summon and throw grenade-like incendiary explosives, and some act as snipers with the new Soulfire Rifle, but otherwise fight the same way.
List of appearances