Yes one of those. I also want to see Killer Whales with soldiers strapped to the back for naval battles, it is suiting since it is already the alternative name for the Orca. Speaking of which, I would so love to see Orcs, I guess they would best fit into the Roman faction since they fit like a glove with Roman culture and Roman infinite manpower.
If a Roman mother lost a child she would not cry, she would just say: "Who cares, I laid 20 other eggs this very morning"