The entrance from the Lower City is in the middle of the base's south wall. You need to return there to return to hideout then transit back, or change party selection: if you do so when the base is hostile, remember that the lookout outside will attack you.
Beyond the standard door to the north is the main hall of the Hidden Bek base.
Main Hall
Upon entering for the first time, you'll see Gadon Thek, a human male and leader of the Hidden Beks, standing behind the desk in the northwest corner to the right of a security door in the north wall. He's guarded by Zaerdra, a Twi'lek female standing to the left of the desk, who'll challenge you as you approach them:
These official looking papers identify the bearer as being on special assignment by order of the Sith government of Taris. They also warn of gruesome penalties for anyone foolish enough to challenge the bearer.
Although you've lost Sith Armor, these Sith papers still allow you to use the Upper City elevator to travel between Upper and Lower Taris, as well as access the Undercity elevator to continue the search for Bastila. Once you have these papers, Mission and Zaalbar won't appear outside the tap room of Javyar's cantina if you haven't already met them there; you'll have to go down to the Undercity to look for them.
The security door to the right of Gadon in the north wall is impossible to open at this time; the same is true of that at the north end of the empty corridor beyond the standard door in the north wall at the end of the corridor exiting the main hall to the east.
Security Door
Unlock
100 (80)
Resist
-
Vitality
-
Another corridor exits to the west. In its south wall is the door to the control room, which is also impossible to open:
Control Room
Unlock
100 (80)
Resist
-
Vitality
-
The west corridor ends in a standard door, beyond which is the bar. Five Hidden Beks wander the main hall who will comment but not engage in dialog when spoken to:
However, if you did agree to kill him when you met Kandon Ark in the engine lab of the Black Vulkar base, Gadon is gone, a Rodian Hidden Bek guard now stands by the security door in the north wall (beyond which is the elevator to Gadon's private chambers), and you can only speak to Zaerdra:
[You spend a restless night in the Bek base. In the morning, one of the Beks takes you to the swoop racing pits, where only racers and mechanics are allowed to go.]
If you return after completing the search for Bastila and winning the swoop race for the Hidden Beks, Gadon is gone but you can still speak to Zaerdra:
You're also committed if you declare your betrayal to the Rodian Hidden Bek guard, or reveal it by using the access codes Kandon gave you to open the security door.
The elevator to Gadon Thek's private chambers is in the north of the base, beyond the security doors which are impossible to open without Kandon Ark's access codes. The most straightforward route is to go down the corridor exiting the main hall to the east, then through the standard door in the north wall at its east end and continue up the corridor to a security door at its north end.
After meeting Kandon Ark in the engine lab of the Black Vulkar base's garage and agreeing to kill Gadon Thek for him, a Twi'lek Hidden Bek guard now stands to the left of the security door. Opening it reveals your betrayal, and the whole base becomes hostile:
Beyond is a chamber with a central pillar containing the elevator, the door to which is in its north face. A sentry droid patrols around it in a clockwise direction:
The security door to the main hall is in the southeast corner in the south wall; the standard door to the barracks is in the southwest corner in the west wall. Two footlockers with random contents are by the west wall as well.
When you take the elevator to Gadon Thek's private chambers, you don't find him alone:
Beyond the standard door at the end of the corridor exiting the main hall to the west is the bar. There's a plasteel cylinder with random contents against the south wall and a security door at its north end which is impossible to open at this time:
Security Door
Unlock
100 (80)
Resist
-
Vitality
-
The three Hidden Beks (two Quara or "Walrusmen" and a Twi'lek male) standing around tables by the east wall will comment but not engage in dialog when spoken to, just like those in the main hall.
If you return after meeting Kandon Ark in the engine lab of the Black Vulkar base's garage and agreeing to kill Gadon Thek for him, a Rodian Hidden Bek guard now stands to the left of the security door:
The moment you declare your betrayal, or reveal it by using the access codes Kandon gave you to open the security door, the whole base becomes hostile:
The barracks is in the northwest corner of the base, and can only be entered after betraying the Hidden Beks. Any two of the following Rodian Hidden Bek guards stand by the table in its northeast corner:
The standard door in its southeast corner, beyond which is the elevator to Gadon Thek's private chambers, is in the east wall opposite another Twi'lek Hidden Bek guard: