Almost Perfect, But Not Quite.
Graphics are second only to hi-end PCs
Controls are tighter and more responsive than Borat's sister
Sounds like good simulated murder should, complete with an orchestra, except for the repeated dialogue from baddies, which ultimately transforms some encounters into a meeting with Charlie Brown's teacher(s).
Playability is so good, I almost didn't need a tutorial. Everything feels right and will have you hunting for extras not because they lead to a power-up, but because you genuinely want to do so.
Entertainment: All I have to offer is the immortal words of Maximus. Seriously, "Are you not entertained?!" The whole package comes together as one spellbinding effort, broken only temporarily by the cookie cutter pronouncements of those short lived foot-soldiers. Otherwise, other FPS should use this as a benchmark.
Replay suffers unless you start tapping the Multi-player aspects, which are (thankfully) deep.