Must have!
Look this is what COD needed for the PC, I love using steam, and I love the fact that I am not playing some crazy 50 player match on a small map. The idea is simple, put the right amount to make it fair, and balance the game to everyone's needs. I am sure in the long run, Steam and Activision will allow us to do more cuz thats what they do. For now, lets enjoy a great upgrade to the MW series.
For those who are waiting to get the game, it's not just awesome it's brilliant. It has tons of new features, weapons and most importantly you get achievements through steam like the console versions.
The only part that is not good, is that now, I cant have a lan party with the game, unless we are all online, but rarely do I do that cuz, I rather play against the world than my back yard! haha, have fun with the game,
and for those who are rating the game 1.0, stop! Thats not fair to rate a game so low because now you cant mod it.