The British mainlanders weren't buddy-buddy with the natives, they barely had contact save for the anglicized ones who made it across the pond. The two factions were in a political alliance, that's it. They were just hired guns to the redcoats, tools of war. That was Europe's typical attitude toward pretty much everyone in those times and the Mohawks were no exception.
Connor has his own reasons for fighting. He, like the other protagonists of the series, is one of history's atypical figures and that he stands his ground against the expectations of those around him is what makes him the hero. Even if he fights for a given side, he kills in the name of his chosen convictions, which more or less align with the Assassin code. I'm hoping the game puts onus on this more human aspect of history - there's gray to everyone and everything. Sometimes even when fighting for a cause you believe in, the wrong people get hurt along the way.
Connor has his own reasons for fighting. He, like the other protagonists of the series, is one of history's atypical figures and that he stands his ground against the expectations of those around him is what makes him the hero. Even if he fights for a given side, he kills in the name of his chosen convictions, which more or less align with the Assassin code. I'm hoping the game puts onus on this more human aspect of history - there's gray to everyone and everything. Sometimes even when fighting for a cause you believe in, the wrong people get hurt along the way.