Most active online shooters?

I'm looking for a shooter with a fairly active online community. I was thinking either COD: Black Ops or Crysis 2. Are these a good choice for active online or have I missed one?

Thanks.

Crysis 2 is active, although I'm not much of a fan of it's online. The story in single player was great though.

I'm looking for a shooter with a fairly active online community. I was thinking either COD: Black Ops or Crysis 2. Are these a good choice for active online or have I missed one?

Thanks.

thinner6

BC2

tf2

css

bfbc2

bf2142 also has some community.. its probably just barely active enough to call lively..

CSS, BC2 the ones that I play, there is nothing out right now thats more popular, although you could try ARMA II if you like the game. And of course BF2 servers are still active but a lot of hackers.