OK, looking through the adventure there is only one other droid that's named as a separate model, the "Warrior Droid".
One adventure in that module revolves around the PCs being sent to "to find “Warrior,” a black metallic robot".
Encounter 19 features the eponymous robot itself:
19 — 20’ by 20’ room. In this room stands a black metallic humanoid, 2 meters tall.
If this room is entered by anyone visible, he will say: "I am Warrior, servant of Fez the wizard. I will answer only to he or she who wears Fez’s robe and carries Fez’s crystal ball.”
GM ONLY: This is Warrior’s room. Players need the other two items sought in round 11 in order to obtain Warrior’s help. He will remain where he is until the party returns with the two items.
There's another location that's a room full of Warriors:
15 — 30’ by 20’ room. 11 warrior droids, stand motionless in this room. Rolls of copper and silver wire are strewn about the room. The room is dusty.
The copper and silver weigh about 1000 pcs. Each.
GM ONLY: The spare warrior droids are turned off. They will attack if they are turned on. No.: 11, AC: 2, damage: 1d10. HTK: 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 (5d8).
There are several other locations with droids that might be designed for combat. The rest appear to be Servitors and Valet Droids with different functions, None of the possible "combat droids" have descriptions, so we have no idea whether they're built like Guardian Droids or "Warrior"
Here they are:
The "droids who attack" who can be summoned in location
12 and the "rather large" droids in the "active droid waiting room" location
20 both have a lower Armor Class but the same damage and Hit Dice as a Warrior: AC 4, 1d10 damage, 5d8 HD.
The droids that attack any green humanoids that enter location
22 have a higher Armor Class and Hit Dice than a Warrior: AC 0, 1d10 damage, 8d8 HD.
The droids guarding the treasure vault location
16 are all-round better: AC 0, 2d20 damage, 8d8 HD.
The first two could just be Guardian or Servitor Droids with advanced HD, but the last seems to be something special.
In any case, we have very little in the way of stats to go on, so we're pretty free to make up whatever we think is cool.
![Cool :cool: :cool:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)