Grand Overture is a hybrid heavy machine gun/missile launcher. It takes a second to charge the initial shot, but then releases a series of heavy slugs. Hit hits with those missiles add stacks to its Wrath of the Colossus perk, loading up to twenty missiles that you can fire in a rapid volley at will. It turns an already powerful Exotic Machine Gun into one of the most devastating pieces in your arsenal. Free-to-play players will need to wait until level 35, just past the third of the way mark into the Season Pass pass. Be sure to stop by Banshee-44 in the Tower for the catalyst quest Heavy Does It. Charge the catalyst to activate it by defeating enemies with the catalyst. It’s a rare weapon . . .