I tried playing a quick game against the AI while logged into multiplay - the computers in the game could be the new characters (I randomed until they were selected, for some reason I couldn't select them manually) and in game, but I still can't pick the new characters, unfortunately.
I feel like I'm missing something. Just installed the game, and Impulse, and I don't see anything in Impulse that would suggest I can update the game, and in game the Impulse update function is greyed out, but I definitely don't have the most recent patch (because I can't use the new assassin.) I'm using Windows 7, tried disabling firewalls, running as an administrator, etc. Can anyone lend me some insight into my problem? I'm pretty stumped :/