If it's any help, you can do this mission with a Platinum/Black Pirate instead of Spica without having to AW them. I've completed this quest with Minerva, Bashira, Iris, Alissa, Zola and obviously Prince, none of them are awakened. Used placement similar to one shown on this video, except placed Minerva instead of Spica, used her skill when the third lot of Eyeballs from below gets into her range from below, and place Zola in a ranged position right under Minerva, then withdraw her in time to not let her die.

I suppose that Platinum Pirates can get their damage per shot high enough to kill Eyeballs in one shot before AW, Black one for sure can. If that is so, Rachel's skill will work in exactly same way as Minerva's, Anelia with her ability to hit 5 targets at once will wreck them up, with Beatrice it would be trickier, as the range is one of the most important things in this scenario. If her range decreases so much that she can not reach Eyeballs where they are circling, then she won't stand a good chance, if not, you may try to activate her skill after last of these Eyeballs get into that "dance". Everything else would be the same, with base range higher then that of Archers Pirates will kill other rushes with nearly the same ease.

Also, instead of Zola you can use Percis, but don't try Mages, Eyeballs have magic resistance, so Mages will need 3 hits to kill the same pack, where Artilery officers need only two and have a better range for it. Hope it helps, if you have any of required units :|