Star Wars Knights of the Old Republic II: The Sith Lords/Trayus Crescent

Trayus Academy
If you exited the bottom part of the Trayus academy through one of the two lower doors in its outer left corridor, then you enter an empty room at the bottom right end of the Trayus crescent. If you go through the door in this room's top wall, or exited the bottom part of the academy through the top door in its outer left corridor, then you enter a room containing three Sith assassins.

Sith assassins rarely if ever use Master.

To the left, there are a series of fours doors and three rooms. The first room contains a male dark Jedi with a male and a female apprentice, and a Sith commando to either side of the door, hidden from view until you enter.

Dark Jedi apprentices rarely if ever use Force powers.

Ranged attackers! Remember them?

The second room is empty, but the third contains six Sith assassins, in lines of three to the left and right, above and below the doors.

Beyond the door in the left wall is a male Sith marauder at the bottom right end of a curved corridor.

The Sith marauder rarely if ever uses Force powers.

Midway up this corridor are a female dark Jedi and apprentice, with a pair of Sith commandos hidden in alcoves in the left and right walls.

Beyond the door at the top right end of this corridor is a room with a Sith lord and two apprentices on its right side:

The Sith lord and apprentices rarely if ever use Force powers.

Beyond the door in the bottom end of this room is another male Sith marauder.

Beyond the door in the right wall of this room is the bottom end of a long room, where there are three Sith assassins, three commandos and an apprentice.

Through the door in the right wall opposite is an empty room, with a door in its top wall leading to the next room, which contains a Sith lord and a female marauder, facing the door in its top wall:

The Sith marauder rarely if ever uses Force powers.

Trayus Academy
The room at the top right end of the Trayus crescent is empty: the door in the middle of its right wall leads to the top part of the Trayus academy.