You should've asked for alliances with the French, Iroquois and Cherokee early on, after winning your first province maybe. The French can be a help with the British Navy, and an alliance will keep the Indians from attacking you for a while at least.

I agree RTI Episode 3 was kind of disappointing historically. I can accept Washington being in Massachusetts (he's not the commander in the game in Bunker Hill, I don't think), because after Bunker Hill, Washington commanded the siege of Boston. But the game says the Brits evacuate Boston because of casualties at Bunker Hill (win or lose), not because Washington had Henry Knox bring the guns of Ticonderoga down. And then after evacuating Boston, Howe is in Maine instead of New York. Ugh. Washington would've much rather faced him in Maine in real life rather than defending an island city from amphibious assault by the world's greatest navy.

Plus the Brits should not start with large amounts of troops up and down the East Coast, and at the same time it should be much harder for Continentals to beat Brits in open pitched battles. You should be forced to use guerrilla tactics more. And, of course, the French never land any troops to help you as in real life, since the AI doesn't transport troops by sea.

Not everything has to be the same as it was historically, but they could've done more. These are little things that CA could've gotten right with no additional effort that would've made the campaign so much more immersive.