Yeah, my only real complaints about mp are the flashbangs and that glitched spawn issue we had on that one map, which according to the guys on the other team only occurs on that map. I'm sure it will be fixed soon. If you were drinking like I was it was more comical than anything. I'm enjoying the mp so far. It doesn't do anything crazy new but I do like the combination of CoD and Battlefield, like others have said. It seems to have almost the pace of a CoD but much more team oriented. The voice chat was weird too. When it was just Swarley and I and we were using the Fireteam chat it was perfectly fine. Then when Brink and Dizzle jopined we switched to Team chat and it was working great for several matches. Then we backed out to try a different mode and when we went back in using Team chat I could only communicate with Swarley but Swarley could hear Dizzle and I. Weird.
As for the campaign, I've only played the first few levels but it definitely seems like a CoD campaign so far, which isn't a bad thing IMO. The campaigns are one of the things I actually like about the CoD games. As long as it isn't four hours long I'll be happy.