I think you should create some kind of duel, for 2, 4 or 6 players on the same party. It would be very interesting, since we never get to fight our friends in order to decide who is the best, or the strongest... stuff like that.
If the problem are some of the PvP steps on some contracts, you just make it don't count for that purpose.
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Lol it's called Rumble. Take 2 buddies in a a time and rekt them