8 small aircraft with small white flashing light

Approx 8 small aircraft flew from west to east over myrtle beach and then over the ocean they got so far away that the flashing light that was on them got smaller and smaller it was dark outside but a full moon before they got completely out of sight one at a time four big round circle lights lit up with a flash on then off like a cargo bay door opening and then immediately closing it was amazing they were like aircraft carriers in the sky