Darkwatch is something everyone should play!
The graphics are excellent and everything looks great! The guns are well designed and the monsters are all well animated. There's a location based damage system which works extremely well... you really feel your weapons carve into the enemies. You can blow off heads or take out a limb if you aim correctly.
The sound is great as the game contains an excellent western style soundtrack. All the weapons and explosions sounds cool. The main dude Jericho doesn't say a word but the other characters has extensive voice-overs.
The gameplay is extremely fun. Jericho controls well and his Vampire abilities are great (you can double jump to a great length for example). Some missions are during daylight which you need to find shadows if you wish to use your Vampire abilities. The game takes a little more than 10hrs to complete but you'll have a great time going thru it. It's really is a great game!