I think it would be sweet if their was a crucible mode mastermind. It would be a one on one mode or possible one on one on one on one. Each person would pick a race that the guardians fight in the game, and the control them. They have a limited number of each kind of Troop and they place them around the map to destroy and enemy. After 7 or so min if one team has not won, there is a object that spawns in each base that the other teams must destroy.