You will be an officer in her Regiment Shrunk in an airport chapter 15 by Louka31

From what you had learned of this new universe's military politics, the normal upward limit for a slave-soldier was a Platoon Lieutenant, commanding 30-40 fellow slave-soldiers. Higher ranks however were sometimes available for slave-soldiers who were proxies for a powerful slave-master.

You could be made a Company Captain commanding about 100 slave-soldiers. Not only would the Regiment Colonel--your Master--get to keep all of the command fees from the Queen, she would be paid an additional salary, for your work had earned a salary but since she owned you, that salary would go to her. Of course, it was a common enough courtesy for a manservant that had proven his worth to his master to have that master donate treats from that salary to him, at her discretion.

Or you could be made a Major on her Regiment Staff. This would net the Baroness less money than if she made you a Captain but it would enable her to imprison you in her headquarters doing overtime to plan her victory while she and the other free fairy officers were off the clock or perhaps even bar-hopping together.

The boldest move would be for her to make you Lieutenant Colonel, the second in command. This would maximize her command fees and additional salary. This was very rare and reserved for an especially favored slave-soldier, usually one desired by his Master, the Regimental Colonel, as a Concubius (basically a concubine, only male) or even more rarely as a husband. But surely, something odd would have to be afoot for her to entrust you with a Lieutenant Colonel's responsibility fresh from the Academy?

But the Baroness, the Commander and Colonel of your Regiment as well as your Master personally, was clear. You were now a...