From Destinypedia, the Destiny wiki
They were first seen throughout the Solar System working for the House of Dusk and were distinguishable by their silver and purple look. While the more powerful Captains wore purple and gold cloaks and armour. They are also notable for spike like protrusions on their back.
They vary in weapon use and feature different style of gameplay for each weapons they use. A Captain wielding a Shrapnel Launcher is more aggressive than a Captain armed with a Shock Rifle, who is more evasive and will try to shoot players at a distance. Some Captains also wield Molten Welders, a Fallen rocket launcher, and will maintain a distance to blast players with Solar damage.
Using weaponry with Arc damage is a effective way to break through their energy shields and defeat them.
House of Salvation
House of Dusk
List of appearances