Depends what subclass you're using. Voidwalker is nice to use for vortex, combined with nothing manacles & scatter grenades. Nightstalkers are nice too for smoke grenades doing loads of damage from void & melee bonus damage. Titans are kinda screwed for this unless you use the bubble with Helm of Saint to blind enemies inside. Was a little tricky 2 maning it earlier with dredfangs & a susano. But dual voidwalkers made it a bit easier due to the easy grenade spam & wide range from vortex damage over time from adds walking through it.