Thanks for the interesting update, Murtius. So, is the battleground in the north fully limited to oceans 65 and 55 - no one from the outside taking part in the action or likely to take part in the future? What oceans would the battleground in the south consist of?
It sounds impressive that The Unit has yet to be caught off guard with any revolt attacks. I suppose, if your opponents are that active, you'd have to get lucky to catch one of them offline. If I understand it correctly, a successful revolt attack will likely take around 8-9 hours from start until finish. That means that even if you learn of your opponent's online times, you would have to time the start of your attack really well to have it succeed before your opponent gets back from work/school. And at the same time, you would have to make it at a time where you would be able to be online at least a few times in the process, in case of counter-attacks.
From my understanding, you can do joint defence, but not joint attacks, so even though you amass forces greater than your opponents, they will always have the chance to defend together if they are close by, and thus can overwhelming any single player who is attacking in numbers (I suppose that if defenders are five time as strong as any given attacker, they could even fend off a wave of attacks effectively, even if the joint armies of the attackers would be stronger). So, I wonder whether the most effective attack tactic is to clear out the armies that might aid the defence of a city in advance (just using normal attacks). Once you manage to deplete your opponents of army, any joint resistance would be useless. However, I suppose this would also mean that you would have to sacrifice a city slot by conquering some city nearby your opponents. But I assume that if you counter a city and then have a lowly member of your alliance conquer it from you afterwards, you will have the same culture level, so you're still free to take another city instead? Still, if you make frequent attacks to take out the armies of your opponents, you would be subject to return attacks. If they have strong players nearby who can match your army, they would be able to calculate the exact second when your army gets back based on when your attack will hit the city of your attacker, meaning you can get caught yourself if support isn't nearby.