Note on Tracking: Initially, this mission will not appear in any mission tracking dialog. Talking to gate guards will disallow you to take any mission, nor will they give you any information about what you are currently doing for a nation mission. If you are in a situation where you have come back after a long absence, you may have to start from the beginning and talk to NPCs in order to find out what step you are on.
Note: Players from different nations currently on Mission 5-1 can join in the battlefield, as it is the same for all 3 nations. All players participating in the fight must be on this mission or higher with their current nation to get in, even if they have done the fight before for another nation.
As soon as you engage in combat, Ancient Warriors will start to spawn and join the battle from behind. They are very weak compared to the Ancient Sorcerers that are there from the beginning and can usually be killed in a few hits or with one AoE move such as area weapon skills or spells.