So, I took the turns, thanks Methos for letting me get in some war!
I was left with some tricky descisions about where to send units, since Berlin was only accessible by two pieces of land, and one of those was a hill with a fortified spearman (bad news for our horses!) But I think that I did what was best
Also, I failed at proper note taking this time around, so you'll have to excuse me if I missed anything out - I did screenshot most of the important stuff
During my turns, construction finished researching, and after I researched trapping I chose to go for Archery->Mathmatics next, in case we need to build courthouses at any point.
Workers do various things, such as completing a trade route, make a sart on some trading posts, a mine on the iron near Rome and a plantation on some incence. I do attempt to complete Siam's mine but going there reveals a barbarian encampment so the worker retreats.
As for building, Antium finishes it's monument and starts on a library, and Rome finishes it's horseman and starts on a colleseum (since we're in negative happiness now and taking Berlin took us scarily close to the -10 threshold)
Turn 90
I move one of our horsemen a bit closer to Berlin, which reveals the rest of his army - a spearman (eek) three warriors and an archer. I move the rest of our units into position, including the warrior who's hiding in Hamburg.
Turn 91
A Great General is born! After quite a lot of thought, I use him to give us a golden age, since we already have our GG down in the thick of things, and we don't want this one to be costing us extra maintenance and not doing anything. The golden age will be awesome for our emerging empire. Also do some more shifting of troops in the front line (take the warrior near the spearman, and use our horsemen to take care of German warriors south of Berlin)
Turn 92
Our units are finally in place and are surrounding Berlin
The warrior was lost, unfortunately, but it weakened the spearman enough for the northen horseman to come in and kill it despite the spearman's bonus against our horse.
Turn 93
Sadly, we lose a unit. But we have a replacement on it's way from Rome, so we're still good to go. The attack on Berlin continues.
Turn 94
He wants peace! We've almost decemated him. I decline
Another social policy! I adopt military tradition. Can't shake a stick at double experience!
In a last ditch attempt to defend himself, Bismarck moves the archer out of the city to block up the tile south of it. One horseman dusts the archer off quite nicely, leaving the other two to come in and stomp all over Berlin! Bismarck turns out to be a pretty good loser and congratulates us on our success!
Turns 95 - 100
In the remaining turns, I heal up our horsemen, check up on citizen placement in Rome and Antium, and explore the rest of our island south of Berlin. I come across one barbarian camp with an archer, which is cleared easily by a horseman. Another of the horses is also sent north to begin to deal with the encampments that litter that land around us.
Turns out Berlin did have a worker, but his land is woefully un-improved. I set the worker loose on the dye for now. He'll probably want to hit the silver next.
On my very last turn, we get the announcement of people with the pointiest sticks! It's not us!
That was a good set of turns
as I mentioned above, please accept my apologies for how inprecise this write up is, as I got quite into the war and totally forgot to note down what I was doing!