The young Sathar is keying in a code and waiting for biometric scanning as you talk.
S'krllk scans the tank. The Sathar are suspended in a viscous liquid that appears to keep them suspended in time as well as seemingly only partially in this dimension. The viscous liquid may be a communication or transportation method, but it is not totally clear.
It seems like it is taking a long time for the young Sathar to open the door, but at last it slides open.
He sprints within, yelling "Enemy!" and pointing back at you. Past the doors, you can see Sathar reaching for their guns.
Vadim, S'krllk and Bartja shake their heads as if coming out of a reverie--or more accurately--hypnosis.
You now have a new entry related to the Sathar:
Hypnotism
A Sathar can hypnotize a character by talking to him in a non-combat situation.
The character must make a Logic check; if he fails, he is hypnotized. A hypnotized character will think the Sathar is his friend, and will want to cooperate with it. He will see things the way the Sathar describes them, if his other senses do not contradict what the Sathar tells him. (For example, a character would not believe that a fire was a pool of water). A Sathar can command a hypnotized person to do something at a specific time, and to forget that he has been hypnotized until that time. For example, a character could be commanded to turn off a security system at midnight.
But you have bigger problems now. You stand in front of the round area into the room leading to #7. Inside, you see that the Sathar there are not only armed but also wear some sort of armor.
There are 8 of them total--3 on the left, 3 on the right, and 2 of them at the far end of the room. (We can label them 1 through 8, respectively.)
The two at the far end (directly in front of you near the chairs 45 feet away (#7 and 8)) turn to their computer screens, possibly to raise an alarm or some other interaction.
Since they are all just as surprised as you, no one gets surprise (normal initiative rules apply). Since this is a combat situation, there is now no chance of hypnotism. They are clearly hostile.
Then there is Sathar #9. This is your friendly naked adolescent Sathar, who is retreating to the southwest. He is still unarmed, but you get a glimpse of this room.
There are weapon storage lockers, computers, and computers. This is a guard station. That's why they are already armed and armored. These must be the Sathar assigned to guard the facility--or at least the prisoners.