According to Stephen Ambrose in his book D-Day, at Omaha (Beach), one in nineteen of the men landed on D-Day became casualties (40,000 went ashore; there were 2,200 casualties)!
“War is a waste. Men and equipment-and generals-are expendable so long as their destruction or death contributes to the ultimate goal of victory. At Omaha Beach, they were expended in fearful numbers. Hundreds of young men and boys, trained at enormous expense, were killed, many-perhaps most-of them before they could fire one shot. Equipment losses were staggering. Hundreds of tanks, trucks, self-propelled artillery, jeeps, and landing craft of all types went to the bottom or were destroyed on the beach by German artillery.”(Stephen Ambrose-D-Day)
“Watching the American landing craft approach, the Germans defenders could hardly believe their eyes. ‘Holy smoke-here they are!’ Lieutenant Frerking declared. ‘But that’s not possible, that’s not possible’. ‘They must be crazy’, Sergeant Krone declared. ‘Are they going to swim ashore? Right under our muzzles?'” (D-Day by Ambrose)