Alien scouts moving toward the Rimmon Staging Base have been detected by a hidden scanning outpost in enemy territory.  
The Protectors believe that they have been sent by the alien command to verify the location of their main base of operations.
You insertion point is the south end of the Rimmon base, the scouts are approaching from the north.
You must move quickly to intercept the scouts and prevent them from coming within visual range of the compound.
If the scouts find the base you will shortly assaulted by a large invasion force of enemy units set on eliminating the human headquarters.
You must either destroy all enemy scout units before they are able to visualize the HQ or take on the invasion fleet that will follow the scouts if they are successful in their mission.  
I feel that you are up to a challenge and thus I recommend that you let the scouts lead the strike force to the headquarters and deal with the entire army personally!