8 room fortress with a more team based XP style. Everyone shares a much larger percent of XP on kill, so spawning more monsters and keeping everyone alive is a delicate balancing act and will likely lead to having more benefit milking, if XP is more important than items to you. While there is XP on hit, it may be in your best interest as a team to figure out ways to produce more spawns as opposed to who is doing the most damage. Bring a priest and a mage.

Respawn times -

1-20 Online - 45-56 min timer
21-49 Online - 35 to 46 min timer
50+ online - 24 to 35 min timer.

XP on death: 87750000

      Ancient platemail protector 4%
      Ancient platemail gauntlets 4%
      Ancient platemail helmet 4%
      Ancient platemail boots 4%
      Ancient platemail leggings 4%
      Ancient platemail armor 4%
      Shield of the ages 4%

      Cloak of the Ages 3.5%

      Ancient Morningstar +3 3%
      Ancient Eveningstar +3 4% 
      Ancient two-hand sword +3 3%
      Ancient Broadaxe +3 3%
      BlackLocust Composite bow +3 3%
     

(Anceint platemail set 4%, Weapons 3%, I consider robes to be mage “weapons”, Ring of the seraph in memory of all those seraphs who died trying to fight the elven king)

These are the drop rates and items, taken straight from the source.