The world is populated by flora and fauna, but it doesn't really seem to do much. Sure, you see animals attacking other animals or people, but the animals are almost absurdly powerful. I suppose to give them a chance against the NPCs. I mean I fully appreciate that a bear might be tough to tackle in the wild, but if I put 100 rounds from an SMG into a Dingo before it goes down, its remarkable that our society grew to the size it did with the unstoppable Dingo army nipping at our heels.
The skill progression system feels broken, with a great portion of the skills being locked until you progress in the story. I understand from a story perspective why they did this, but the game does a poor job of letting you know when IT wants you to go explore this big world and when it wants you to stay on the story.
Graphically it looks very nice, and I did enjoy feeling like I was in this South Pacific Island but overall I felt games like Just Cause 2 or Mercenaries II did a better job of making me feel like I was taking control of an area with my big guns.