I'll put in a word for Daivd Drake's Roman stories. They are few in number, that not being what the masses hanker for.
Ranks of Bronze is a good one, and perhaps his first novel. Basically it is about some of Crassus's legionaries who are picked up wholesale by aliens who need experts in low technology warfare. There was an anthology titled
Vettius and Friends of short stories involving a Roman named Vettius. Also very good. Two other roman ones of Drake's are wierd. Well, all of his stories are wierd. From the various biographical sketches of him I've run across he started his roman scribbling while in Vietnam, reading Amminaus for his sanity [!]? One said he was an interrogator, another said he was a tech-grunt who got a gig cleaning stuff for high brass inspections. I don't quite believe either. And I believe both. Thos otehr two books are
Killer and
Birds of Prey. I had to look up one of those titles and found this site:
http://www.baen.com/author_catalog.asp?author=ddrake
Some of the books shown have the look of having some ancinet based material in them. But you never know until you thumb through it.
A thing I've learned about book titles; they are not always the same on one side of the Atlantic as the other. In fact they are quite often different. And I do not just mean translations. So it might take some extra poking around to find anything the Yanks (or Rebs) tell you about.
STAY CLEAR of the Rome in modern times bboks of Kirk Mitchell.
I liked the first one well enough for a pulp read to get the other two from Amazon. He does not develope his universe. It is basically like Rome has survived through time to the 20th Century, and has not changed at all except for the last forty years or whatever when one emperor invents some things like railroads and tanks and automatic weapons. Of course ... never mind. The pulp does not hold up as well as Edgar Rice Burroughs, and has pretensions of Alexander Kent or Pat O'Brien. And every relgion from Norse through Judaism, a timeslip Islam, Apache ways, and even a respectful if condemning nod to the Aztec blood baths are recognised as "real". All except the Religio Romana and Hellinismos. WE have no gods, only empty idols that no one believes in, and seems tonever have believed in. My stoic control triumphed. I did not throw the book across the room.
Enough for now.
Valete.
Ericius.