Kings and Conquerors: The Hellenistic Era is a total conversion mod for Rise of Nations: Thrones and Patriots that aims to bring the Hellenistic period to life.
Here are some more of Rome's new and redone units. As well as updating the Cohors Evocata models to make them more distinct, the Garrison Infantry have their own model and a new unit, the Vigiles, have been created to give the Romans a late-game levy unit.
The terrain in this picture is from Azangara's Terrain: Flora and Fauna mod, which you can get here: Moddb.com
The shader effect comes from GustavoUlate25's ENB mod, which you can get here: Moddb.com
So am I right in assuming the Vigiles are recruited from the Peasant Dwelling/Tenement?
Yes that's correct. They are an upgrade for the Rorarii.