Star Wars Knights of the Old Republic II: The Sith Lords/Mining Tunnels

While T3-M4 worked on your ../Rescue/ in the hangar bay and fuel depot, your main character waited with Atton by the administration level's computer:

The administration level's is now open!


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Otherwise:


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Your main character received none of the experience earned by T3-M4. Atton has nothing new to say, and if you use the administration computer to access the comm system and select Hangar Bay 25:

You need to go to the emergency hatch, back between the security room and medical bay, and take the turbolift to the mining tunnels.

Turbolift to Administration Level
The turbolift from the administration level is on the bottom left end of the mining tunnels. As you cross the room to the door in the top right wall opposite, Atton uses the comlink:

Otherwise:


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Atton using the comlink doesn't cancel mode. Beyond the door is a short corridor with another door at its top right end, a plasteel cylinder by its bottom wall to your right, and a broken droid in its top back corner to your left:

Once you've checked the cylinder, if you haven't yet told Atton you don't want any of his advice:


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The corridor beyond the next door is empty, and leads through another door to a crossroads. The bottom right corridor is mined, and if you haven't yet told Atton you don't want any of his advice:

If you haven't checked the plasteel cylinder back in the first bottom left corridor:


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If you haven't put a point in to disable or recover these mines, and you don't have  to trigger them from range, then if you're careful you can walk between them to get to the broken droid at the end of this corridor, where the tunnel has collapsed. There's another broken droid in the top right corridor, which is blocked by a door.

The top left corridor contains a damaged mining droid:


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At level 2, it's possible to reactivate and fully repair this droid with 9 Parts and rank 8 (maximum rank 5 (level 2 + 3) as a class skill with 16  (INT +3), or 14 Intelligence and  (Intelligence: +2)).

The following options are still available once the droid engages its patrol mode:

Setting the droid to explode inflicts 20 piercing damage within range unless a Reflex save is made at DC 15, halving damage.

Once engaged in patrol mode, this droid enters the mouth of the mining tunnel at the top end of this corridor, and can patrol back and forth between here and the entrance to the cavern ahead. There are four Mark I mining droids in the linking tunnel: two melee and two ranged (one shielded).

There's also a broken droid at the left end of this tunnel:

The tunnel turns to your right, leading up to the bottom end of a large cavern. There's another ranged Mark I mining droid by a corpse lying on the right side, and further up in a recess in the left wall there's a Mark I excavator droid that can use a :

There are four Mark I mining droids (one melee and three ranged (two shielded)) with a maintenance droid at the top end of the cavern:

This maintenance droid repairs any damage inflicted on other droids so destroy it first, ideally with a ranged weapon, Force power or grenade: once destroyed it explodes, inflicting 10 piercing damage unless a Reflex save is made against DC 15, halving damage.

Superheated Blast Tunnel
There's also a corpse lying at the top end of the cavern:

As you approach the blast tunnel exiting the top right corner of this cavern, if you haven't yet told Atton you don't want any of his advice:

Each hot steam vent in the tunnel inflicts 2-4 fire damage on first contact and every 6 seconds thereafter: even if you run straight through you can take damage up to a dozen times, so using a Telos Mining Shield is highly recommended (particularly on Difficult).

There's a second crossroads at the right end of the superheated blast tunnel, which is mined:

The bottom left and right corridors have collapsed, but the bottom right is mined and contains a corpse:

The top right tunnel contains a broken droid, three Mark I mining droids (two melee and one ranged (and shielded)), a Mark I excavator droid and a maintenance droid:

Central Mining Core
As you approach the bottom end of the top right tunnel from the second crossroads, if you haven't yet told Atton you don't want any of his advice:

If you have rank > 0:


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There's a bridge across the main ventilation shaft ahead, with a corpse on its top half, and a Mark I excavator droid on the top right and bottom left sides of the walkway around the shaft's perimeter.

Containment fields in the four corners block any exit, so you need to use the central controller in the middle of the bridge. There's a plasteel cylinder to its left: