Bluntly: implosion in 1 millisecond results in all five of them being reduced to human jelly. Mercifully the human brain would require at least another 25 milliseconds for them to have been aware of it in any way at all. Genuinely instantaneous. Immediately after that, the sudden and extreme compression of the sub’s atmosphere results in ignition and explosion, cremating the human remains along with the Xbox controller and anything else flammable on board.
They will in time recover the metal parts of the sub from the sea bed, I’m sure. But they will not be bringing back any trace of the five men on board.
