Creative Director Clint Hocking and technical director Dominic Guay gave a short interview about Far Cry 2
Clint Hocking
We have many, many different environments in the game, but one you'll see an awful lot of is this kind of lightly wooded grassland.
Because the story isn't a scripted, linear, narrative, we don't have complete control over the emotional tone of any given scene or moment.
Also coming in useful is a character named Marty. There are no health packs in the game, so you'll have to perform first-aid on yourself. Marty is another character who is out on his own missions. He will sometimes help you when you're in trouble, healing you when you're injured, for instance.
