Nebula: The Battle Rages
Champion size when encountered: Cruiser
Tactics: Make the most of your shields with runs on small starbases. Use you projected shields to attack the large bases. Defence isn't much of a priority unless a large base is in danger. This nebula will take a while.
Reward: Battleship hull, 5 facilities (fewer if you lose large bases). Exp based on time/starbase damage.