Far Cry 2 has lots of good elements, but it kind of self destroys all of those with terrible design choices.
The gunplay of Far Cry 2 is fun, but really it isn't anything special. The game allows for strategies such as pyrotechnics, and stealth. Using fire to your advantage is very fun and useful, but the stealth system isn't really an option until a decent amount of time into the game.
The biggest hinderance to the Far Cry 2 experience is the fact that to get anywhere, you need to drive. And drive. And drive. It's honestly no fun. The random encounters with baddys on the way can be fun at first, but it devolves into an annoying pattern of drive, shoot, heal, repeat. Where's the fun in that?
On paper Far Cry 2 isn't anything special, but once you get into the world, you will definitely me immersed, despite the annoying inconveniences the developers throw at you. I recomend this game to FPS fans, but I can safely say there are better games on the market that are more worth your 60 bucks.