I haven’t been writing as much because I have been busy, in particular my legendary Western Roman Empire campaign. I finally figured out a good strategy and it’s worked great so far, with me at turn 80, on the tail-end of a long war which had me out-maneuver and destroy many enemy army stacks.
12 factions have been wiped out so far. I personally wiped out the Marcomans, Quadians, Visigoths, Vandals, Ostrogoths, Suebians, and Iazyges. The only major opposition in Europe are the Saxons and a mishmash of British factions who are all fighting each other as well as me. A lot of the land to the east in Illyria has been razed by the constant fighting, only the Illyria and Macedonia factions are left. The Eastern Roman Empire fell to a combination of barbarians and the Sassanids.
I have about 20 turns until Chapter 2 finishes and Attila can potentially spawn. I was planning on writing a guide but the further I get into the campaign, the more I realize I can only provide tips and best practices for optimizing your empire, but how you survive is up to you. With so many factions at war with you at the start, WRE can be a little bit of a toss-up. I would not go so far as to say there is luck involved, but favorable outcomes and “being at the right place at the right time” is a huge factor in whether you’re fighting 10 battles a turn and barely surviving, or cleaning up quickly and surviving.