Meanwhile, my MC80s are one-shotting two of them per turn...
If they have surrounded you, you're already dead.
I dont know. I may be the only one who has found this hard but getting more than 3 to 4 CR90 B's into medium range where they can attack and survive is about the best I can do.
I dont think more than 4 is likely to get in and attack but these are much larger ships so in theory 2 of them can tail the rear of the MC80 and 2 to each side but the ones on the side will be dead and that is double the points of the MC80, so there are another 100ish points doing things as well.