Hello, SPQR.
I know that this mods doesn't attach importance to paticurary era.
But I want to say some my suggestion.
Barbarian Invation is a waves in the history of late 2nd century to 5rd century.
It's a unnatural to represent the senturies in a mods.
So, I suggest to make the "Barbarian Invasion" series.
First time, it is the "End of Begening"
This is the stage on Marcus Aurerius's era.
He was the 5 great Emperor's one. In contrast, his reign is not peaceful.
In 161, Parthian invade Easten Province, 1st and 2nd Marcomannic wars.
In 175, Syrian governer Avidius Cassius revolt to Marcus Aurelius.
I should say, this Generation's Legion is the last one of using widely lorica Segmentata armor and Imperial Italic type Helmet.
Second time, it is the "Crisis of the Third century"
Old Roman Empire was divided by Gallienus ruled Italia,Pannonia, Anatolia and Afirica, Postumus ruled Gallia and Hispania, Odaenathus(and his wife Zenobia) ruled Asia and Edgypt.
Of cause, Frank, Almanni,Goth and Sassanid Empire are on the watch of oppotunity the invation.
It is important event of Roman military history, Gallienus reformed Legion and mainly unit change infantry to cavarly.
Third time, it is the "Fall of Rome"
Maiorianus is the last Emperor to try to rebuild the Western Empire.
In this time, He ruled territory is like your made Map for "Bararian Invation"mods.
He attacked Vandal in North Africa, but had failed it, he was assasineted.
I thought these theme of Barbarian Invation.
What do you think these?