HW Campaign: Diamond Shoals

From Encyclopedia Hiigara

When the Mothership intercepts signals from Taiidan bases, they must navigate through a dangerous asteroid field and go through a nebula.

You hyperspace in to find that you have not cleared the asteroid field and to prepare for collisions. Using Ion Frigates, Destroyers (captured or built), and Assault Frigates, destroy the asteroids that are on course to the Mothership. Don't bother with others. After clearing the belt, the Bentusi arrive and sell Drone Tech. If you have the RU's (harvesting in this level will works after an asteroid is blown up), buy it. It is extremely useful in the Nebula Missions. Hyper out once all Resources are harvested.