I'd say that it's rather different from MW. But now that you mention it, I thought earlier that this isn't really...Battlefield, as I know it. I've having a helluva good time playing it, but I don't really consider this to be
Battlefield 3 so to speak...especially since they're actually working on that one. This would rather be a sidestep on the way, but it's fun! And it's NOT MW2, thankfully. (I like MW2 but not it's multiplayer). They even make some references to MW2 in the singleplayer campaign
But to compare the two games....well, the Singleplayer is kinda similar to eachother, that is, both campaigns are pretty predictable and straightforward. Go there, do that, etc...Had fun, was very cool, but not really a prize winner.
Multiplayer, well, I for one hated the MW2 multiplayer. No serverbrowser, you couldn't select server, team, or even map (!) and when you start playing...well...can you say "grenade spam"?
IW addressed this problem in this video:
Needless to say, it didn't really work. Note that they named the sponsor "F.A.G.S."
DICE also took up the grenade spamming in a humorous video. If it was to poke fun at the MW2 video? Most certainly. Was it better? Oh yes.
(Sponsor aptly named "F.R.A.G.S." ^^
But the significant thing here, is that in BC2 it takes more skill to survive and kill than in MW2. Grenade spamming really isn't that usual in BC2, thus making the experience far less frustrating....though those snipers can be a real nuisance...
Also to note, that the maps in BC2 are pretty big, making for some real epic battles, when you have full teams that is. Also, as I'm sure you understand, noobs will be noobs and you will encounter teams of near-all snipers, but hey, that's the Internet for ya...