If you have Problems in this Mission do this:
Load up Mission 5 and capture the Destroyer (you need four Salvage Corvettes for that) and build five Repair Corvettes or Support Frigates.Also up to Assault/Ion 15 Frigates – now you should be ready to complete Mission 6 diamond shoals easily!
Dock all not used Units and make a tactical Group with the Destroyer and the for Group two the rest of your Frigates. Now attack every red Asteroids that comes your way.
Move all your Units in the front of your Mothership, so that they get the damages and not your Ship … easy 🙂