No need to have these cheap, worthless turrets and base fleets. Don't waste your time and effort. Gates are worthless...The Gate-Sleeper is worthless. I just watched one fleet hit over 30 bases and took very little damage. Thousands of hours of damage and it cost him very little. The game is unbalanced and not worth the effort. Everyone he hit was 30-60 levels lower than he was. How embarrassing!