A good FPS for those who want to go outside the usual cliché of WWII, Modren War, and Sci-Fi/Future Wars
This game can be quite immersive with a great (although somewhat limited) soundtrack containing music from the motion picture "Glory" add to this effect. Although there are some historical inaccuracies (such as a Gatling Gun position on Little Round Top) they didn't distract me from enjoying the game.
If you are interested in the Civil War games and would like to play it from the perspective of a Union or Rebel grunt I would strongly suggest picking this up as well as its sequel Civil War: Secret Mission. You won't be disappointed.