I hope this isn't a joke...
There's been a couple of threads here about it. The game was originally a RTS for the xbox, and then ported to the pc. I've never played the PC version but the xbox version was pretty cool. Basically it's a RTS at the squad level. Most of the time your managing 2, four man teams, though sometimes you'll get a specilist or two to use. Alot of the gameplay focus on moving tactically in urban enviroments. (team A lays down fire to engage, while team b moves to out flank.)
The audio and visual aspects of the game are good, not impressive but are very atmospheric, and definetly add to the game. For example the people in your squads will chat with each other...alot randomly, and as a result you start to get to know them (sorta of the "band of brothers" effect)
The only negative i can raise is that from time to time you'll find yourself in a situation where you'll say "WTF why can't my people aim for crap, i could've shot that guy myself.. blindfolded". But that's because the game is determing hits based on "rolls" that are based on various critera, not on real bullet trajactory ect.
Overall in retrospect i'd give the game 80 of 100.