Galactic Wars EX

I figured that I would share some of my scores for rank B on mission 1 to help people try and get this achievement. I am not sure what the minimum thresholds for each section are, but every time I managed to get a score B, I had to get these types of scores.

Game 1
Time- 4 minutes and 35 seconds
Accuracy- 45%
Enemies destroyed- 513
Perfect Waves- 11
Hits Received- 1

Game 2
Time- 4 minutes and 43 seconds
Accuracy- 43%
Enemies destroyed- 509
Perfect Waves- 11
Hits Received- 3