First off, I have to admit to being biased. This is hands down one of my favorite FPS titles to date. Not only does it take one of my favorite movie genres - the spaghetti western - and weave an extraordinary tribute tale but it has some of the funnest levels I have ever had the pleasure of playing. The people that designed those levels really did a great job of combining the right amount of puzzles that fit so well with the environment. Even the train level was fun as heck to play through. Just a fun game, period. And Clint Bajakian's music perfectly emulates Ennio Morricone's sound but makes it his own. Just listening to the main title is great. I have the original 2-CD set of this game and the music is a permanent addition to my playlist. The ONLY reason I give 4 stars and not 5 is because the soundtrack is not included as a download. Come on Gog. Oh, and definitely play the Historical and Other missions as well. Simply fun as heck.