What about an American football type match with a ball and if you have the ball you cannot attack but your trying to get to the other teams inzone to score. So you have to rely on your team mates to protect you. If you die you drop the ball and it becomes a pick up item by anyone. So like American footbal with swords and you 86 the huddle. You could do like a 5 min round and whomever has the most points at the end wins.