"The Man Who Stopped Nuclear War"

"In 1983, Soviet Lieutenant Colonel Stanislav Petrov received a warning that US missiles were incoming. Protocol called for a retaliatory launch, but Petrov judged the alert to be a system error. He was correct, the system had misinterpreted sunlight reflecting off clouds and his decision likely prevented a nuclear war."
Lee's orders to Hill were lost by a courier who was on his way to deliver them to Hill.
The document was Lee's orders to Hill, which also showed the disposition of the Lee's units, NOT McClellan's.
And what made finding the plans historically significant was the fact that McClellan DIDN'T act on them in time to take advantage of them. In fact, that's why McClellan was relieved of command after the battle.
Talk about getting the story ass backwards!
What the description is about and what you're saying are two different things. Crossing the Alps was not without casualties for Hannibal, though I can't say whether this one, in particular, was so. He did replenish forces along the way, too.