Army Maj. Gen. Franklin L. “Buster” Hagenbeck, 51, is a paratrooper, but he comes from the aristocratic breed of generals rather than the rough-and-tumble kind. He bears a striking resemblance to Douglas MacArthur.  And like MacArthur, he’s a constant presence in the operations center when his troops are under fire, up at all hours, pacing and questioning his staff, checking and rechecking and trying not to nag: aircraft spare parts, fuel, weather, ammunition supplies, even water; the separate routes the helicopters will fly through foggy mountain passes to get reinforcements in and casualties out and not collide with each other.  “You don’t sleep a lot at night,” he says one afternoon. “You spend every waking moment going over every detail until you think you’ve got it right.  One night I laid down for the first time in 48 hours, and 45 minutes later they came in to”—he gathers his breath and pushes on—“to tell me a helo is down and we’ve got KIAs (killed-in-action).”