A game mode like Rush but over one large single point and the tickets go up or down based on what team has a larger living player presence on the objective. Like king of the hill but bigger.
Instead of claiming the point entirely, either have a time limit or point limit to reach the highest score.
Have points either awarded per player on point or 1 point per second the team has a greater player count on the point.
This could encourage players to play far more aggressive than rush or any tdm mode could.
The chaos would be astounding and fun.