In reality, soldiers are lean and strong, and for those who are five big and three thick, they are not suitable for being field soldiers. For example, the height of an airplane pilot should not exceed1.75m and the weight should not exceed 70kg, which is the same all over the world. Because the plane is too small, too high and too heavy, it will not only increase the carrying capacity of the plane, but also have trouble when escaping.
Tanker, armored, airborne, marine, submarine and special forces all have strict height and weight regulations. Height 1.8 meters, weight over 70 kilograms, is absolutely not allowed to participate.
If the soldiers are too tall, the target will be big, and they will not use lurking, climbing or long-range attacks; If the load is too heavy, the physical strength and endurance will not meet the requirements, because the human heart is not enlarged because of the five big and three thick.
So the American soldiers on the screen are art, which is not available in the real army.