Things i have found incorrect or misleading:
"Churn out 10-stacks of battleships (you don't really have to worry about subs because AI rarely produces naval units)"
Not only is this painfully false, they love to spam Subs and Destroyers, thus the possibility of this failing already, and if it was a Player that went Inactive, they could have had the strongest navy in game, and would then proceed to decimate your vunerable fleets with Subs and NB's.
- 10 lvl 3 - 20 iterations (10 hours)
- 5 lvl 6 - 14 iterations (7 hours)
- 10 lvl 6 - 6 or 7 iterations (about 3 hours)
"One thing to watch for... if the robot stack has ranged units that are within range of your battleships, they will probably fire at you, but usually not a big worry cuz most ranged units don't do big damage against ships."
You completely ignored the possibility of Naval Bombers, and the AI upgrades those a lot then spams them, so you could lose your entire stack if you go offline at the wrong moment.
Overall, i see a multitude of things wrong with this, first of all, where are your Fleet Support Ships? as i said above.
Things i have found to be 100% correct:
- Send most or all units in the stack to the place your battleship stack is located. This is GREAT! (they have to take 2.5 hours to embark, plus transports are horrible against battleships no matter how many units are in there)
- Send most or all units in the stack to another province - in this case you can choose to follow them if you are online and they are staying near the coast.
- Stay in the city. The only bad thing about this is, buildings in the city will take major damage, as well as morale.
This is unarguable, it is the full truth.
Everything else in this post i have found nothing to say about, my solution to this would be to NOT underestimate the AI.