Basso Ostinato PVE God Roll. Destiny 2 Basso Ostinato God Roll and How to Get. Basso Ostinato is a Void energy, Rapid-Fire frame Shotgun. You can obtain the Basso Ostinato shotgun by completing the Terminal Overload activity in Neomuna. At the end of this public activity, the chest will spawn, and you’ll need a Terminal Overload Key to unlock it and obtain a random weapon from the loot table, including the Basso Ostinato.