Carlos Hascook
In a volunteer mission before the end of the first deployment, Hascook assassinated a general of the Vietnamese army. General North Vietnam's base is surrounded by dense forests. On the side that doesn't belong to the forest is a meadow covered with tall grass. Grassland is far less hidden than forest. Most soldiers may go through the forest to get close to the base, because it can provide more cover, thus reducing the chance of being discovered by the enemy. This is the exact reason why Hascook didn't do it. This is the most anticipated attack route, so if he shoots there, the enemy will rush there and try to drive him out.
Examples of forests and grasslands. Obviously, which landscape can provide more shelter.
Instead, he approached the base from the grass. When I say close, I mean he really climbed to the base, 1500 yards. The whole process took four days and three nights. In the meantime, he didn't eat or sleep. When the wind blows, he can only move a few inches at a time to cover up his movements. This is done with a technology he called "worm", which is a low-level crawling.
He moves painfully slowly, only a few inches at a time, hundreds of times an hour, so that the enemy can't find him. The auspicious clothes he wore blended him into the environment. Once, a poisonous bamboo leaf climbed on him and almost bit him. Hascook was able to stay calm and motionless, and the snake swam away.
When he crossed the defensive perimeter of the camp, the enemy patrol was only a few feet away from him, but he was still not found. He even climbed two heavy machine gun towers. Finally on the fourth day, Hascook climbed into the general's range. When the general left his camp, Hascook fired a shot and hit the general in the chest. The general died instantly. The whole enemy camp immediately took action, and as Hascook had expected, they immediately ran to the Woods to look for snipers. On the other hand, Hascook climbed back slowly along the way he came, and completed the task safely without any accident.
Many people think that Hascook's plan to climb the grass without observers is suicide. Finally, he chose a lonely road, thus consolidating his position as one of the most legendary snipers in history.