Jurassic missions: Free offline shooting games

The missions are free and you are supposed to fight the dinosaurs at the secret island. This is a scientific voyage in the game. It's best to land the shore of the island to look for the lost scientists. This will be tough since prehistoric scelosaurus are out in the open. The quote was that "If you want to stop dinosaurs, hold the assault rifle or other firearms harder, shoot faster and correctly." You have to acquire supplies and upgrade your weapons to make your game work.