You'll need to drop down the slope in the north east corner, so it's up to you whether you fight or just head straight for it. There are more Gelatins and a Yojimbo in here. Deal with the Bussemands and then drop through the hole in the floor to the next level. Flick the switch then rejoin the corridor and follow it to the end. Head up the steps and round the corner to find a few more Gelatins and another electrical panel. Waiting for you will be some Gelatins (higher level versions of Flans), more Bussemands, and a Yojimbo (vulnerable to Javelins, Guns, and Lightning, and resistant to Fire).

As you approach you'll be ambushed by some Bussemands - use Broadswords, Mechanisms, and Fire to take them out, and then slide down the water to the level below. Interact with the electrical panel (one of four you need to locate), and then continue to the end of the corridor. Head south along the corridor and up onto the raised platform to the left. Climb the long ladder down to enter the dungeon. Head through the gate and turn right, go through the small opening in the fence, and head down a short flight of steps.

Head for the parking spot and deal with the Imperial troops and a couple of MA Veles mechs, but if you're level-appropriate for the dungeon they should be no problem at all.

The dungeon entrance is near Insomnia, right back where you started the game.

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