I am only a little bit past the training level (haven't even reached the first checkpoint on the shipwreck)... this game is good. No, it's really good.
The gameplay is great - it has a very nice quake feel with it... you can jump, crouch, grab life and ammo and weapons off the ground or a shelf. It has a BF1942 feel to it where you can hop in a vehicle and go... you can also choose how you play - either crawling around the whole map, or pulling off a shoot everything you see attitude - both work pending how good you are.
The graphics I think everyone has seen are truely amazing. The islands are absolutely beautiful, when you go to the jungle you actual feel like you are cramped around lucious plants and birds... truely a unique feeling I've never seen a game do. I thought my video card would be a major bog down for this game, considering the fact I barely scored 2000 points in 3dmark03... however it's not! It runs great, settings are on low, AA is high, and it looks absolutely amazing!
There are very few hard games that keep my attention... I don't like hard games. I hate trying to do the same thing (run into a group of 20 enemies and try to kill them all for 6 hours... who can do that?) over and over again... but this game. With this game you can take a different tactical method each time, allowing you to trial and error which works best. I absolutely love it maybe because the realism is so great... which brings me to the next part:
The AI is absoluely awesome to work with. They aren't smart enough to come charging after you if they see you a mile way. And they aren't dumb enough where you can sneek behind them and they won't hear you. They are smart enough to call for backups (and damn do they come quick). I learned something real quick: if you are trying to get past a part... and 3 guys are there - make sure none of them make communication or a back-up call. Kill them before they do, and you are good to go.
This game really makes me happy, and I fell like it was the best $40 I've spent in a WHILE. The realism, the graphics, and the AI makes this game tactically challenging... not impossible. Highly recommend it to those who have at least the recommended system requirements.
*EDIT* - sorry, didn't realize how long my reply was... another boring day in computer class.