I volunteered for several more conventional burial at sea details. Old retirees get their wish granted by the USN and it is a nice ceremony. Usually no family, just videos. It is an involved process, sometimes months long wait for an available ship. I believe that my barge was popular due to us having a morgue. Bernie the pirate stayed there, higher story.
Caskets would be metal, predrilled with a lot of holesaw holes for sinking and heavily weighted. I assume that the body was bagged, but still an odor. The casket would be borne to the launching device, flags, rendered honors, Chaps saying words, standard military funeral. Not wanting to have foamies visible in the video I skipped hearing protection and was closest to the honor guard. Not having blanks aboard they used line launching charges in the M-14. By the third funeral that day I was dear, my Dixie cup had a fair amount of unburnt powder in it and my whites were pretty beat from lifting and sweating.
Weird atmosphere, outside of the ceremony we weren't somber, nobody knew the people. Chaplain had all kinds of funeral fail stories, not wanting to repeat sinking recalcitrant caskets with the fifty, or going out in the ship's boat to hole them with a fire axe. Similarly, aircrew in another command had no nice things to say about spreading ashes in flight, rotor wash, and the side of a leaky H-3 covered in gearbox oil.