Having no idea how many hours, weeks, months I've been playing this game I now feel qualified to write a review and, without question, this is one of my all time favourites. Yes, its long - very long - but if you want value for money, a lot of challenges, superb soundtrack, solid storyline that progresses well throughout and a genuinely immersive experience you will not go wrong with this. The game play is fluid, there are areas you can skip if you wish and its as hard core as you want to make it. The graphics are good enough to be reasonably realistic and, all in all, I would highly recommend :-)
This is definitely not a standard 'shooter' type game and requires a bit of brain-work to figure out what, exactly, your supposed to do and expect to die allot but I seriously recommend it. The actual fighting parts do get progressively more difficult and, in some cases, you have to be quite sneaky rather than go straight in for the kill but its a learning curve you do get the hang of. Graphics are excellent and immersive, gameplay solid and plays perfectly on controller, storyline is good although you don't actually need it to enjoy the experience .... all in all its a good game and worth the money.