During the intervening years, Alabama was the site of some of the most defining events of the civil rights era. These events transformed the state and profoundly changed America. Black protest started long before the civil rights movement emerged and continued long after it stopped receiving front-page headlines.
Also, you can play versus(and survival, if you get the GOTY edition) offline by selecting join friends, the pressing X to start your own lobby, it tricks the game into letting you play the modes. Why there wasn't just an offline option on the main menu is beyond me.
Far Cry Primal won't support co-op play, and this is why. The Far Cry series, to the best of my knowledge, has never been big on multiplayer. The option is there for those who want it and it's apparently decent, but I suspect only a small slice of the Far Cry audience actually bothers with it.