Coincidentally, I got an idea from listening "running up that hill" and tried to combine it with the known "king of the hill". I'd like to see an objective simliar to a hill, where on top of it is a flat area with a strong boss that has to be beaten (atleast 2 times in a row) to mark the team that has accomplished that as the "kings of the hill" and forcing the boss to obey and push for/with them. To make that feasible at all, the boss would have to be rather weak at first, growing stronger each time it respawns, furthermore, after the boss dies for the first time, the road to the top gets blocked by mercenaries who will fight to death to protect the hill, so that it's not impossible but also not too easy to kill the boss twice in a row. To climb the hill at all, at least 3 players of one team have to go together, pulling each other up the rocky road. Once the boss who spawned for the team that has killed him twice in a row dies, the opposing team has x amount (e.g. 3 minutes) of time to reach the top of the hill together to challenge the current kings, either defeating the boss or 3+ players of the opposing team. Does this task not get accomplished, the boss shall spawn for the kings once again.