In 13 mission, do not hurry to save the dog, first disperse with the Attack of Wigrov. Oddly enough, but I have helped the mission at the forehead. You only need to control it personally every second and constantly build new ships. After deal with the flagship Vaigra and save the dog. Do not expect a mission immediately without straining. Approximately the third attempts will figure out in all the intricacies of the attack. And further. I went through the mission to the attack in the forehead, and how will you pass, will my advice will help me from me.