Red Faction: Guerrilla is really fun, but it lacks a bit.

The story of this game is simple. The bad dudes, the EDF if you will, killed your brother, and you seek revenge by destroying all of the EDF shit. That's about it. As you can see, there is really little story in Red Faction: Guerrilla. That is one of the games few weak spots.
 
Another one is that this game is very hard. You are pretty much a one man army here, and as you progress, the missions get harder and harder. I found myself switching the game's difficulty to easy just so I could complete the game. Sure a challenge is great, but it got to the point where I just couldn't handle it anymore.
 
All negatives aside, this game is really fun. The gameplay is pretty much you ruining the EDF's (Earth Defense Force) day. It consists of you blowing up a ton of buildings, and killing a bunch of dudes with a hammer. A big part of this game is that any man made structure is destructible. The destruction is very satisfying, as you will expect. 
 
There are about 20 main missions in the game, and there are more than 100 side missions to choose from. There is plenty of replay value in the game, but as I said, the missions get very hard. If you enjoy a challenge, or getting pissed off, go ahead, try them!
 
So, you're saying you want to destroy shit with other people, eh? Well, ok! There is a multiplayer mode in Red Faction: Guerrilla. There is your basic modes - Deathmatch, Team Death Match, Capture The Flag, Control Points, etc.

There are also some unique modes, such as Destruction, where you destroy and your team destroy or defend builds for points. The multiplayer is really fun, and I had some memorable moments playing it.
 
If you want a game with a story, or a really easy game, look else where. If those two negatives don't push you away, you may want to try it out.