Heh heh heh, I'm a FIRM believer in Forward defence, I'll run Max troops forward to press the attack, and leave min defence behind to safe guard, oh I'll leave a defence on borders attacking from.
On build, I believe in whipping often and hard, I usually play a farm economy, so I whip hard, because, I can get the economy to a stage where its recession proof. Attack is what's needed now, NO INFRASTRUCTURE, CANNONS CANNONS AND MORE CANNONS. drown her in Cannon balls, have her lose her cities, so NO PRODUCTION, NO ARMY.
INFRASTRUCTURE can wait till the war is over, and we're only facing off against Saladin, Now's the time to PRESS THE ATTACK.
Hit her hard and now, trade for replaceable parts, trade for rifling, once it become available, with steel, research sits at zero, banks markets etc, can WAIT, ARMY cannons, rifles, Calvary are what's needed. Stables + Barracks are the only builds I'd be making. Forges and Ziggurts, can wait till war's over.
Having Sitting Bull FIGHT Saladin for us is a great idea. BUT WE NEED TO DEFEAT BOADICEA.
I have no problem taking the city, you set it up, its your baby/prize to claim, well done.
Railroads, we'll have to research on own I'd say, they'd all be going for Infantry (always war), but BOADICEA NEEDS TO DIE FIRST.
I've made an update of dot mapping, deleted some existing cities, added new possibles, deleted a grossly wrong one.
Plan for war, keep all Boadicea's cities, too late to be adding new one's.
Hit Tolosa, then go onto Bribracte, leaving the other cities to Troops following up to take.
This does 3 things.
1) Keeps the advance going.
2) Takes out her main Production cities.
3) Allows the Replacement troops to arrive at the battle, and to actually take part.
Replacement troops, will have to be produced from Ulundi and Ur. (closest cities), ALL OTHER CITES will draft, whip till they are upset, then some more.

will wear off, reduce due to Luxury resources/ ending of war. Losing cities or an advantage WON'T.
WE HAVE ONLY 1 OPPORTUNITY TO hit Boadicea hard and decisively. Not doing so now, and building INFRASTRUCTURE is a mistake, complete current builds, but banks, markets, can wait till after war.
Remember, we control the flow of troops across our borders, so control the pace of war. BOADICEA is the only one we don't control.
My idea to to whip, set for max production, and drown her in cannons, Calvary, Rifles. (7 turns) Whip Stables, barracks, Forges

Multiplier,
Road network TO BOADICEA is needed, not water mills. (2nd)
WHAT are we doing with UR's towns, farms, or work them???
map with dot's updated attached, moved 1 musket to hill to get vision.
View attachment 243202
I'm 24 hr's From Tolosa...

...damm I'm funny