Yes I know of offline mode, but you "must have internet" to even get to offline mode. Not to mention the whole "must preform mandatory update no mater what you told us even with automatic updates off" really ticks me off. With me having little to no internet unless i lug a ~100 pound computer halfway across town just to play my game because my only reliable internet is from a friend with cable, to my nothing "sometimes dial-up if i get spare money, being jobless does this." internet connection, it really hampers me.
It's just the first time you play that you have to be online, in order to activate the game. you can buy the boxed version from retail, activate it once online and then play exclusively offline forever if you want to. And by the way, since you are
posting this message on a forum, it would appear that you are currently in a place with online access.
Most other high profile boxed PC games you can buy these days will have some sort of online activation. Some do not, of course, but DRM-free triple-A titles would seem to be in a dwindling minority.