“Assassins Creed 3” (Xbox 360, PS3, PC) is an action-adventure at its most expertly researched, and it is the all-too-rare title to prominently explore Native American culture. Colonial cities such as Boston are constructed via 18^th century maps, and Ubisoft hired a Mohawk community consultant for language accuracy. It’s perhaps the only game released in 2012 that could be more fun to experience as a historical fact-checker than a player.