This is a medium-size map with three levels and 5 players; but it should play like larger one due to its winding tunnels, teleporters, water travel, and many well-guarded structures crammed in. AI won't do well. In theory players should have a choice between attacking each other early, or fleeing to the wealthier lands of the surface, (everyone starts in the Depths), or slowly repairing the initially razed structures of the starting area. In practice the map may need tweaking.
Your leader is already level 30 - he'll be a weak fighter, strong mage forever, as will enemies. Enjoy!