I dare say some DIE hard BF2 fans will find BF3 a big leap if they haven't even looked at bc2 between the two titles. I'm not a die hard bf2 fan I stopped playing it a long time ago but when i was playing it was the variety in the game that kept me going back for more. IO bored the pants off me. Most FPS are now released for IO fans who want close quarter fast paced, no squad play, no tactics gaming. If BF3 goes that way instead of back to its roots then yeah there's gonna be alot of pissed off people.
I will be getting it, I may be disappointed and if I am, I promise you it'll be the last FPS multiplayer I'll be bothering with.