Although the single player campaign is of the highest quality, the multiplayer couldn't keep me interested for long.
The gameplay remains the same from the other entries into the Call of Duty series, except instead of a Thompson and MP-40, you're now outfitted with modified M-16s and MP5s. The vehicles present in the 3rd Call of Duty are now absent, but doesn't hinder or lower expectations one bit. There are no visible flaws in the gameplay, so there's not much more to say here.
The first thing I thought of now that Call of Duty had switched to a modern setting, was the possibly of overt political commentary. I was throughly surprised to see Infinity Ward not take that route, other than the dangers of nuclear weaponry use, the only thing you're concerned with is the battle, not the political ramifications behind it. Which brings me to the story...to put it simply, you're a member of the British SAS, Sgt. "Soap" McTavish, or a soldier in the US Marine Corps, whose name passes me at the moment, I just remember the last name was Johnson, but that really isn't important. Your task as these soldiers is to simply dispose of terrorist warlords who harbor nuclear weapons, and by the end of the game, brings you to accomplish this mission. End of story.
The single player campaign is an intense and visceral experience any die-hard shooter fan would enjoy, but for some reason I lost interest in the multiplayer very quick. As I mentioned early, I've had my unhealthy dose of shooters (ahem...TF2) this fall/winter, and with Call of Duty 4 being the last one I picked up, I was simply tired of the genre. Points to Infinity Ward for the customization aspect of the multiplayer, which I'm sure will keep most fans of the game and series hooked for awhile, but the multiplayer aspect really couldn't hold my attention and I couldn't see myself playing this on a regular basis.
So, all of you die-hard shooter fans out there will most likely hail this game as the second coming of Jesus, or Cthulhu, or any Theological/Cult deity you worship, but for me the game is simply very good, not bad, but far from perfect, just very good, namely for it's production values and cinematic single player. Now if you don't mind, I think I'll go play something like SimCity to calm me down after the pile of dead bodies I've left in my wake between all the shooters this season.