From GameWatcher: "Chivalry 2's House Galencourt update introduced the brand new 3v3 Arena mode to the medieval first-person slasher, catering to those players in search for smaller-scale battles. Although it's only been out for a few days, the mode already has a leaver problem that some players are countering by offering their outnumbered opponents 1v1 duels.
As you can probably tell, Chivalry 2's Arena mode pits two teams of three against each other. There are no default restrictions on how the battles play out, so you do get a small serving of the chaos that goes on in its 64-battles, but one match spans a whole five rounds. They're not necessarily long, however, reports point towards players leaving before matches end."