Sweet jesus! A fair while into my campaign on legendary, and civil war erupts. 3 armies would have been a challenge, with most of my legions spread in Spain and Africa, but 8!!!?? With elephants to boot, and only a single legion in Italy to hold back the hoard!!
Now, I don't mind this per say (I'm looking forward to the challenge), but I would of liked a bit of warning. I think there should be a message saying "civil war imminent: even the balance of power or prepare for war!". I was silly enough to assume I would get such a message. My problem with this is that I actually wanted to remain a republic. However, without doing anything, my reputation kept on rising, and evening the balance of power cost insane amounts of money! I payed a couple of 10,000 marriages to try and address the balance, but it did little to raise the other families' reputation.
So, a warning to all the future emperors out there: once your reputation gets to around 70%, start making armies at your capital; you're in for a bumpy ride.
I'll update this as the turmoil unfolds.