This game is one of the best I've ever played.
Choose from one of 4 characters, and earn money by accepting missions from different factions (ie: locate and destroy the missile launchers), and along the way look out for enemy agents to dispose of, (don't kill the locals!) earning extra cash to buy more weapons and help.
Not only are the graphics stunning, the detail extraordinary, the gameplay exciting, but you are not limited to what you can do or where you can go (Ie: i had to destroy a mobile radar jammer but had run out of bombs, so i hijacked it and drove it at speed into the river); blow up anything you want up, control any vehicle you come across (helicopters, tanks, missile launchers, even airport trucks), massive variations of weaponary including satellite controlled bombing, stealth, cluster bombs and so much more.
This game is immense and WELL worth the money. I'd have willingly paid full price for this and had value for money. It has a huge landscape filled with detail - get bored, then go exploring (grab a helicopter)!. At later stages you are dropped off (by copter) to other unexplored areas - the game keeps going and going. LONGEVITIY - 5 / PLAYABILITY - 5 / FUN - 5 / GRAPHICS - 5