I voted 6-8 right now because I'm not to sure if it'll end up 3-5 or 9-10. I haven't even bothered with the single player yet and will get around to it when I have nothing else to play as far as single player games are concerned. This is entirely based on the multiplayer (as it should be). Anyways, on Wednesday, I loved it. Yesterday, not so much.
One big problem (and I have never, EVER, said this before) is that I'm playing it on the XBox360. I have never bought into that PC superiority crap and for the most part, I never will. The maps are just way too big for 24 players, especially when there are so many vehicles. If you don't gobble up a vehicle, you are one of four or five members on your team running around an enormous map. That gets very boring and involves limited action, especially when it becomes purely a vehicle battle. Also, when I was playing last night, none of the servers were full, making the teams more like eight versus eight.
On the small maps, which was made to compete with COD (why did they do this?!), it becomes a camp fest. Way too many buildings that are three stories high and way too many nooks that people just camp there the whole time. This wouldn't be such a problem if the game did what is promised and made them destructible. However, they're only semi-destructible, and you can't take down an entire building, just little chunks of it. I assume it's because the streets are too narrow and the buildings are too big, creating a campers gauntlet.
Overall, I'll have to wait and see if the community gets better and more familiarity with maps will render perma-campers useless.