https://www.gamespot.com/articles/destiny-2-new-gambit-mode-revealed-for-forsaken-dl/1100-6459404/

With the next big Destiny 2 DLC expansion, Forsaken, on the way later this year, Activision had been teasing that some kind of innovative new mode was coming. With Forsaken now revealed ahead of E3, Bungie has shared the first details about this new competitive multiplayer mode, which is called Gambit.