Fixed the eastern comm sector objective not appearing.

Adjusted the quantity of hostile units on the island

-Fixed addon error

-Fixed the safezone only occuring for the server
-Unlocked prowlers at base
-Ulocked farmer truck
-Added more eastern comms tower guys
-Changed the name of the investigate area task to find device
-Increased the minimum sonic weapon cooldown to 400 seconds
-Took fuel trucks of invicibility once they reached the dome