i had three major problems with assasins creed 3 when it launched.
The bug where with two dual shot pistols you'd only ever get three shots, which has since been corrected.
The crafting/homestead screen is, horrible to navigate and use.
the sea missions are not unlocked chronologically but instead left to you to jump around in. I'd be playing before the full on revolution, and be fighting the British talking about the "rebels"
other than that, it's a bowl fulla fun.