Sorry, but at the moment I only have one secret. I'll have more soon.
THE FOURTH TOWER: In the dam get the sniper rifle. Go to the dock behind the second tower. Go all the way to the end of it. Zoom in as much as you can in front of you with the sniper rifle. There will be a fourth tower! Rare put it there as another objective. But it took up to much space, so it was cancelled, but the tower was left there. It was suposed to be an arms cache. If you use the game shark you can get over there. There is an inactive drone gun, and from what Ive heard, Oddjob is suposedly there. I dont have the game shark so i wouldent know.
