The FB 39 run takes place in The Gate of Delerium.
There is really no need to wine this unless you have money to waste. Nothing too serious to handle except for the fire mobs that do AOE damage when they die. If there's a group of 3 or 4 all popping at once it can easily take a few people down.

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1) You start here. Remember to use the Token to increase your attack and defense ratings. Follow the Red line killing any mobs that get in your way. If you need mob kils remember to take the little path to the left near the start.
2) The door here is closed but there's a little cave you can sneak through. Warning: As you come out the cave there are 2 fire mobs that POP when they die. Quite a lot of AOE damage.
3) Be a bit careful here, these mobs do area of effect damage when they die. Lure one by one if you're a low level squad.
4) Tab spot and Calcid of the Flame (Fire boss - 296'765 HP). Pull the adds away first, kill them and then go in for the boss kill.
5) Tab Spot. WARNING: The mobs here leech life. If you pull them all at once you may have a squad wipe. Lower level squads should pull them one by one.
6) Kill Hercule Trioc here (Metal boss - 296'765 HP). Pull the life leeching mobs away first.
7) These mobs have a fair aggro range and they seem to sneak around almost unseen. Be careful of sudden aggro and watch out for the clerics getting heal aggro.
8) Tab Spot. Stay away from the middle 'hill'. If you pull 1 mob you'll pull them all. Easy form of suicide.
9) Kill Farren Sereneti (Earth boss - 296'765 HP) here after pulling his adds away. He does an AOE damage so clerics keep your range.
A) If you are doing the quest that needs mob kills, the extras can be found here.