Are snipers trained to stay awake for 72 hours

Adam robertson and john henry are correct.They can stay awake for 72 hours and.Most of them would chew on dry coffee grounds.After about 72 hours of sleep deprivation during training, smith recalls mistaking an airplane for a flying horse, perceiving a bridge as a giant pez dispenser, and seeing a squat, muscular body builder where there was in fact a fire hydrant.If they are so feared, it is because of their mission:

They can stay awake for 72 hours and remain completely focused on their target.A sniper is able to stay awake for 72 hours by using fantasy integration, a mental exercise they are taught in training.