Time to get serious !!
The value is great and it's playability is just insane,you'll have much fun playing it for hours and hours to end.
Gameplay:
Great gameplay,looks just like counterstrike but you are able to kill thousands and thousands of enemies which by the way is really hard when there's many of them right in front of you.It's scaring sometimes when a enemy appears surprising you,but it's really fun and improves your reflexes,which by the way is a very good thing.The AI is good and smart,you won't see enemies doing the same thing all the time,most of them have different reactions to different situations.
Graphics:
Great graphics for its time,shadows and everything have been really well done and even the reflexes of this game are great,you can see much blood in it but you won't see much gore,sometimes you'll of course.
Enemies have their own characteristics and that makes easier to recognize them.
Sounds:
Really good sounds,you can hear your footsteps,enemies shouting and everything exploding.You won't be disappointed,the musics that are played on each level are really good too,perfect for the theme.
Value:
One of the cheapest games,a great value...it's really worth for a FPS fan!
Concluding:
Great game and replayability,which means you can play and finish it as many times as you want and don't get bored,and there's a great multiplayer which features the Co-Op option to play the entire game with two players.