Just prior to the final battle, Upham translates a beautiful song to the squad while Miller talks to Ryan. Although both valuable, Miller's appreciation of art has more practical application than of Upham's. Like many well laid plans, Miller's is not completely successful. The Germans do not take the bait. Their numbers overwhelm the two Allied units.
Heavy casualties ensue until the reinforcements arrive.
But if success is measured by the result of his mission, Miller makes the grade. Private Ryan is saved. Ironically, Miller is killed by the very Nazi who he released earlier. Upham then kills that Nazi, but only after the battle is won and the danger of retaliation is over. Ryan, not to mention we the viewers, must strive to be worthy of the sacrifices made by those who have rescued him.