It occurs to me to mention that the military rankings in Etzos are ONLY for Etzos. Now, if someone doing a different city decides they like that same rank system, they can certainly feel free to use it, but don't assume that something in
one town is the same the world over.
This applies to surnames as well. Some races may not use them. Linika's Naerikk culture use surnames based upon their hereditary eye color. Admittedly, this detail is a new thing that is not on the public write-up. There is also a
rank that some possess that must be stated before their name, or they will be insulted, and Naer women do not take kindly to insult. In fact, they don't take kindly to damn near anything

.
I think you could probably scan through the approved character sheets
(the ones with green check-marks) and see how they check out in this regard. Some folks want to
flaunt their surnames, while others might go to great lengths to conceal them.