[JShaggy]

For the most part, Guido is correct. Of course let me add one last detail about episode 16 before going into 17.

Spoiler for the end of episode 16:

When Rally had his meeting with the four girls, he pretty much gave a speech about how he chose them to run the division, sorta acting as an equal opportunity employer (he didn't care about race, gender, education, etc; but wanted everyone to be at their best). It's there he introduces Roze as the new chief of the RUC Special Security Section (which the four girls are a part of), and the latest episode picks up from where the previous one ended.

For the most part, this episode was an RUC episode:

Spoiler for episode 17:

The RUC Girls are pretty much adjusting to their new boss (nice to see Roze is the same as ever), and everything just moves at a normal pace; however, Sylvia is not at all pleased with Roze as her commanding officer and refuses to acknowledge her as that. Just then, the RUC girls get a call about a mission over in a ruined section of town. Celica and Sylvia are dispatched in their cybersuits, with Celica at sniper position and Roze looking from above on top of a building. Things look like they're going well until one of the crooks throws a flash bomb to the ground, making Sylvia vulnerable. With the situation tense, Roze goes in with her pistol and takes care of the matter successfully (side note: the criminals once knew Roze before she became an RUC officer). With the mission finished, the girls head back to HQ, in which Rally acknowledges them all, specifically Roze, on a good job.

Still not convinced about this development, Sylvia challenges Roze to a cybersuit battle. With the other girls looking from above, Sylvia appears to have the upper hand, that is until Roze's suit has a strong reaction.

ADVANTAGE: Roze

Sylvia is defeated, and accepts her defeat gracefully in front of her colleagues, but behind closed doors, she feels rather disappointed in herself.

Moments later, as Axcela tries to gain access to one of the rooms, her card doesn't work. But when the door opens, Axcela finds Rally conversing with Roze and finds out something very shocking indeed as Guido had mentioned. Back inside the work room, Celica had received a notice of termination from the RUC (meaning she just got fired) based on "poor performance in the previous mission". As it turns out, Roze made the recommendation. Sylvia is outraged of this and inadvertedly quits the division, but not without confronting Rally one last time. Axcela stops Sylvia and tells her about the conversation she heard between Rally and Roze (turns out Rally rigged Roze's suit to give her an advantage over Sylvia). Sylvia confronts Rally, wanting answers about what was going on. At that time, there's a small moment of intimacy between the two, until Rally stabs Roze in the stomach and leaves her for dead. It's at that point Rally reveals his true intentions to a dying Sylvia. The other girls come in to find Sylvia in a puddle of her own blood, in which Rally then labels her as a "traitor" in front of them. So what will become of the remaining RUC girls?

EDIT: They got fired as well. Thank you Guido for pointing that out.

As for everything else:

Spoiler for episode 17:

Roy is still in persuit of Solty; however, his leads take him to one person: the old man (we learn in this episode that his name is actually Joseph), in which he and Roy have a long talk. Back in the city, Solty has returned, only to find that Roy isn't home. She goes to the Maverick hunter's office, in which Miranda and the other's are surprised to see her back (evidenced by Kasha drop kicking Solty for one thing). As Kasha washes Solty in the bath, she asks what Solty had been doing all his time since she had been away. Solty tells Kasha about her time with Will, and just behind the bathroom door, Uto (being the pervert he is) was eavesdropping on the conversation, eventually getting caught by Miranda of all people.

Closing thoughts:

Spoiler:

Evidenced by the events that took place, Rally has now shown his true intentions.

My previous theories have proven correct so far that the RUC girls are just pawns in the ultimate dark plot, and judging by the fact that Sylvia has now become the first "casualty" in the security division (Celica's firing doesn't count), it's quite clear that while these girls have the best potential, they're also expendable. With tensions now beginning to build, it's only a matter of time to see what happens next.