Turn 0:
Look around our empire and check diplomacy.
Guimares can do better with engineers and some minings (draft pop away to avoid starvation).
Set some cities to grow and assign some engineers as we currently have no need for that many scientists.
Make alliances with all our friends against Maya, Inca and Aztecs.
Plant a spy with Babylon. I would rather not war them and their 65 mechs. But Ok we are at them.
Set Minamoto to abandon via settler. It doesn't add any tile and blocks a grass for other cities.
Turn 1:
Capture Khorsabad. Build a temporary attack town. Capture Oea. Capture Zamua. Capture Cadiz, losing a tank army.
MM a bit. Trade maps.
IBT:
A few fights between Mongol-France and Babs. They are now coming with quite some force.
Nuclear Power is in -> miniaturization.
Turn 2:
MM mini to 5 turns. As this is the most expensive required tech we we will need 4-5 turns per tech for the rest (25-30 turns).
Sell around nuclear power for a few 100 gpt.
An elite cav takes out a redlined tank -> leader -> army, as Apollo will complete anyway next IBT.
Take Saldae and Tell Wilaya. Settle a new access city and take Theveste.
IBT:
Lose 2 cities to babs cause I didn't watch all the rails.
Russia destroys England.
Turn 3:
Take Carthage with pretty useless Sistene. Retake some cities I lost IBT.
I doubt we will get much more from Babylon. Our troops need to heal and there are lots of Mongols and French coming up.
We also have now a war weariness problem (and WH with England is away).
I make peace with Babs shooting our rep for good. I get Theveste in the deal.
Unless somebody declares I intend to play the rest peaceful. We need our production for Space ship parts now.
Make some trades including getting the "crucial" ironclads from Russia.
Turn 4:
Only a few trades, a bit MM and worker actions.
Turn 5:
Still not much happening. Distribute troops in case there is an attack by Mongols.
We got our first SS part.
Turn 6:
Business as usual.
IBT:
Mini comes in and I rush a few offshore platforms right away.
Turn 7:
MM satellites to 4 turns. With internet in hopefully 3 (w/o pollution) or 4, we should also get laser and synthetic fibers in 4 (maybe also the rest with big starvation and merge a lot workers).
That means max 22 turns to have all tech. We just have to look to have pre-builds ready for the parts.
Turn 8:
Nothing special.
IBT:
The Ottomans destroy the Maya

. Now we will have to fight the Mongols as there was a coupled treaty.
Turn 9:
The dogpile on Mongols is pretty expensive with the previous broken alliance (~2000gpt per civ).
But we have enough tech.
Take Agedincum to connect our southern and northern provinces (good thing I had prepared for that

).
Capture Augustadorum and Gergovia. Izibia next. Satsuma is pretty tough but falls.
Philadelphia is hilarious. I need conscript mechs for the last battles.
I'm out of troops now. Conscript a lot more to defend.
IBT:
Lost a bunch of mechs, but no cities. Temu has really lots of tanks.
Internet completes.
Turn 10:
Get a leader. Builds SS engine.
Another leader next battle -> army.
A long time later I got all roaming tanks, but now we have again a WW problem.
Capture Tyendenaga and Guardia in the process.
IBT:
Lose some more units, but nothing severe (just some dumb mistakes).
Satellites in, go for synthetic fibers. I doubt the Ai will come up with it and I rather have some modern armor.
France helps a little, but with typical AI tactics.
Turn 11:
We have a problem. WW doesn't allow synthetic fibers in 4.
I make Bismarck furious and try to plant a spy. He declares giving us back our old WH with him.
Take Detroit (Joan lost it IBT). Capture New York. Take Houston. Capture New The Hague.
Thrusters complete IBT. Several bigger builds under way (e.g. Seti) could be used as pre-builds for the next parts.
There is an empty army south of Steal the Land.
Next turn some payments expire. Look for trades.
If happiness gets even more of a problem, we can also still have war with Theodora. There should be still some WH.
It's now 16-18 turns (most likely 17) to finish. Just look to have prebuilds ready for the parts.
The war with Mongols isn't too bad anymore. Most of his tanks are away and France is helping now.
Still we have a big land and it isn't easy to find all the possible attack locations.