Hey People, I finished all the tasks in this Level, I destroyed all the THREE TOWERS and after that new objective is displayed as "Destroy the Freighter"... after destroying the THIRD tower which path to follow to complete this Objective...
DO i need to get back where I saw Hand Glider and Land on the Right side,,,, I did not find any such FREIGHTER to destroy... SO where exactly the last stage in this Level?

Doyle gives you a direction to head in - but yeah if you're not listening you'll miss it. Oh, I know, just look on your scanner on the bottom left. The glowing blue dot is the direction you need to go. You can get there by land or sea.

After the third tower explodes, start back down the hill the way you came up but make a left halfway down instead of going straight. Follow the road and you will come to the ship.