One trick I use is get the boat with a machine gun on top. When you have to dive down to find stuff. I do circles and circles shooting eVERYTHING that even looks like it might be a shark.
Then, its usually save right by the boat. And that big boat, you can stand in the back, and use your bow and arrow, for that shark hunt. A jet ski, you can not stand on. If you are standing, you are safe.
I also drive close to shore, and shoot at any bad guys that shoot at me. I usually win, unless they have a rocket launcher, with his only at outposts.
Dr. Darrell of Michigan. Signed up for a 13.1 mile (21 KM ) half marathon on May 5th. Wish me luck!