One of the few first person shooters I didn't finish. There's no finesse in this game at all. And I found I was often wandering around empty levels looking for something shown on the map with no clue how to reach it. Or even worse, spending 30 minutes trying to do some sort of jump sequence that for some reason the controls and geometry of the game just wouldn't quite let me get the timing of. I actually uninstalled the game after spending a full 10 minutes trying to jump onto a truss I'd gotten onto earlier and just missing it over and over. There are also in-game challenges that to me at least bordered on impossible. On the plus side the graphics and music are amazing, but overall I found it a boring and frustrating experience.