Play this game,not because i'm telling you to,but because it'll remain in your hearts long after you've finished it.
In short, you'll be running driving swimming shooting your way across miles and miles of intensely detailed African terrain with a large variety of weapons, with the freedom of choosing any way of carrying out a particular mission.
Graphics being crisp and highly detailed, you'll need a string PC to render all this in high quality and the experience is good. One thing though, you wont find enemies upgrading themselves over the 25 hour campaign, so the only way of keeping the combat exciting is by trying out the different weapons you'll have access to.
The animations presented in first person view can be enthralling at times,with the game engine brining out the best in the game.
The story mode will take about 25 hours or so to complete in normal difficulty, with the story itself being not too good,but gripping to an extent.
All in all,you'll find this to be a very good shooting and exploring experience irrespective whether you are a shooter fan or a fan of open world action-adventure games.