Give it a try if you like the movie, otherwise, don't buy it.
Gameplay:
If you play Tom Clancy's games, you'll recognize alot of actions from Rainbow Six etc in this game, opening doors and controlling you're stupid AI teammates is frustating and isn't that much, seeing that the opponents AI could be more polished.
Further then that, you get a tutorial for the basics of the game, you don't see you're weapon while in game, which sucks in FPS, if you want to play a game thats similar like this, but with better AI, tactics and scenario, go play other TC games.
Graphics:
Blocky and lame textures, lots of icons and such, theirs not much innovation either, its just the millionth Tom Clancy game and doesn't quite bring it, it doesn't remind me of TSOAF either, more like the millionth terrorist encounter game.
Story:
You're this guy, blah blah, take out terrorists blah blah, nuclear weapons blah blah blah, its you're average movie that goes about terrorists, and again, this story isn't much better or diffrent from other games from TC.
AI:
Opponents takes seconds to respond to you, you can run infront of them and they're like 'Zzzzzzzzzzz'
Multiplayer:
MP isn't that good either since you can't play with bots, and nobody plays the game online, surprise isn't it?
Is it a good FPS:
No, you might want to look into the game if you like the movie, but there are alot of better games in the genre.
Also, the game is almost only one between two hours long, so its short, thank god.